What Is The Rule Of 72

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  • Опубліковано 17 жов 2024

КОМЕНТАРІ • 757

  • @WhiteBoardFinance
    @WhiteBoardFinance  5 років тому +134

    *Have you ever heard of the rule of 72 before this video? Let's get this video to 2k likes!*
    P.S. - A BIG shoutout to all the people who subscribe to my channel just to give my videos a downvote, you're my biggest fans! :)

    • @seanfonteyn
      @seanfonteyn 5 років тому +2

      Legend

    • @Adam-lv1uu
      @Adam-lv1uu 5 років тому +2

      what you are teaching is sacred geometry, you Mason. no wonder you have such a sinister smirk on your face.....

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +8

      @@Adam-lv1uu yes my Eastern European immigrant parents are Masons. you got me. LOL!

    • @RealLifeMoney
      @RealLifeMoney 5 років тому +3

      Lol that got pretty deep quick! Wisdom exposed

    • @DanielIles
      @DanielIles 5 років тому +3

      Some people really are out here just to ruin a day

  • @Vodoo954
    @Vodoo954 4 роки тому +17

    Robs Rule # 32. Told a 30 year old recently, if you’re not a millionaire by 70, you’re doing it wrong. I try to help kids by showing them how to get ahead by planning. I use the rule of 72 frequently along with my 70 years of life experiences. I hope a lot of youngster see this, you explain it so simply. Kudos, excellent!

  • @adalbertolima3491
    @adalbertolima3491 5 років тому +60

    I went to a vocational High School and my “major” was finance so a lot of what you go over I was taught in high school including this it’s one of the main things I remember. The majority of your content is stuff that I didn’t know about or didn’t fully understand. I’m appreciative of the fact that I probably had a better personal finance course than other people my age but I do think your videos are just as useful if not better because if I’m not learning something I’m freshening up on some of the stuff I learned.

  • @mii1563
    @mii1563 5 років тому +31

    Its good stuff :). The only thing I would say I wanted was to let people know to adjust for inflation. So essentially take away around 3%, so really its only growing at 1% in the 4% calculation. Also, making sure they account for taxes depending upon the investment product they choose of course.

  • @smartjoe5258
    @smartjoe5258 5 років тому +198

    I'm a HS senior ,and I never heard about this rule before. Something is wrong with the educational system.

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +14

      agreed!

    • @EmpressofChrist
      @EmpressofChrist 4 роки тому +2

      Agree

    • @rudistorm3348
      @rudistorm3348 4 роки тому +5

      You are now way ahead of the game. Save your money in index funds and you will be a millionaire by the time your 50. Live modestly and use your money on investments.

    • @bamaboy9133
      @bamaboy9133 4 роки тому +4

      They did teach this just in a different form in algebra 1 and 2 in high school. Same concept and principle. Just different topic.

    • @bettye444
      @bettye444 4 роки тому

      Smart Joe No joke.

  • @TraderMigs
    @TraderMigs 5 років тому +8

    This is phenomenal and one of the best breakdowns I've ever seen. I put my money into trading Forex (trading fiat currencies, metals, indices, etc) and I've found that the average trader can make 1% to over 10% a day trading their money, and compounding it daily is amazing, versus letting it sit in some account for years and years. Of course there's risk in it all but, I chose to educate myself properly and build the discipline to be a well leveraged trader. Question, do you trade in the Forex market?

  • @newtubehome
    @newtubehome 4 роки тому +4

    (1+x*0.01)^(y/x)=2, the answer is y/x=ln(2)/ln(1+x*0.01). Some samples, x=0.01,y=69.32 x=1,y=69.66 x=3,y=70.35 x=6,y=71.37 x=8,y=72.05 x=9,y=72.39 x=10,y=72.73 x=20,y=76.04
    So, when x is smaller than 3, use rule 70, when 3

  • @justrusty
    @justrusty 5 років тому +26

    I once graphed (using excel) the rule of 72 vs the actual time to double money (using a much more complex and accurate formula.) The two curves were remarkably close. They drifted apart at the extreme ends but it's an amazingly close approximation for most values we'd come across.

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +4

      The rule of 69.3 is more accurate

    • @justrusty
      @justrusty 5 років тому +8

      @@WhiteBoardFinance Wow, I just graphed that too. (Found the old spreadsheet from a long time ago; I had actually had the 72 in a cell and changed it to 69.3.) Closer than 72 but what goes into 69.3 easily? I think 0.1, 0.693, 6.93, and 69.3. :-). Somehow the Rule of 72 seems a tad more practical.

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +2

      exactly

    • @ejcheck
      @ejcheck 5 років тому +2

      @@WhiteBoardFinance The beauty of 72 is you can do the calc in your head on the fly

    • @Kris_M
      @Kris_M 5 років тому +2

      @@WhiteBoardFinance "The rule of 69.3 is more accurate" To be more accurate: "The rule of 69.3 is more accurate around 0%" while "The rule of 72 is more accurate around 7%". Both lose accuracy moving away from their optimal point.
      Still a cool thing to know though, makes ball park ttd calculations without a calculator with a log function a breeze.
      Upvote given.

  • @davelackey5943
    @davelackey5943 10 місяців тому

    I learned this almost 40 years ago in college myself and I’ve applied it the rest of my life. I have tried to instill this into my kids and grandkids as well but you can lead it to water but you can’t make them drink. They’ll probably inherit what I’ve saved, but heck I won’t need it. Thanks for the info it’s always good to see a refresher.

  • @Sideler74
    @Sideler74 4 роки тому +14

    I learned this rule back in the early 1990's from my buddies uncle who was a chiropractor. He taught us about mutual funds & how to invest monthly etc. This Rule of 72 is what every lending institution knows, yet they don't want you to know. They don't teach it in school. My wife has her MBA in Finance & even she didn't know the Rule of 72. LOL

  • @umerk2305
    @umerk2305 5 років тому +2

    Hi Marko and Fans. I "recently" found the channel and instantly got hooked to your very knowledgeable, professional, authentic and humours contents. I am an average person actively seeking to improve upon financial knowledge. I cannot thank you enough for your "OUTSTANDING" service to humanity and particularly those who are seekers of knowledge for success.
    The Rule 72 was very easy to understand, extremely Important & Useful and, "flawlessly" done.. I have gained a lot from it and again ...Thank you so very much. Happy Subscriber!

  • @waynelast1685
    @waynelast1685 4 роки тому +4

    Very useful. I always used the simple rule 7-11..... 7% interest in 11 years , or 11% interest in 7 years.... but your rule is more widely useful

  • @sarahjane9264
    @sarahjane9264 5 років тому +9

    My favorite part about your videos is your cheerful disposition. I'm expecting you to bust out laughing at any moment.

  • @JacquelineSALEU-jo4ns
    @JacquelineSALEU-jo4ns Місяць тому

    Thank you for sharing this. I know now I will teach this to my 6 and 7 year old daughters as soon as they can understand it and encourage them to invest at the earliest. I wish I had known this earlier...

  • @scottzalaha5832
    @scottzalaha5832 4 роки тому +3

    Very well done! I share this concept with my clients often but Marko presented it elegantly with humor.

  • @freepilot7732
    @freepilot7732 4 роки тому +8

    Anecdotal point; my grandfather taught me this back when I was 10 years old in the 80's. Never forgot it. Awesome.

    • @finanzieron
      @finanzieron 3 роки тому +2

      but did you actually apply this early in life to grow your wealth!??

    • @freepilot7732
      @freepilot7732 3 роки тому +1

      Absolutely. Though things happen in life but it's nice to know you have the money to use, then be able to start up again where you ended.

    • @finanzieron
      @finanzieron 3 роки тому

      @@freepilot7732 That's awesome! I found out about this way later in life! 😔💔 Even though I graduated in Economics! Not until I turned 40 did I find this amazing tool.

  • @ericwilde4583
    @ericwilde4583 Рік тому +29

    If you invest $200,545 into the S&P, then assuming a 10% annual rate of return, your child at an early retirement age will be 2 Million plus rich, excluding every other income channeled to this. We need to invest much more. Focus on the company not just the stock price, true words from my F.A James Fletcher Brennan..I made over half a million from ALB and NVDA..I love passive income.

    • @gagnecaron658
      @gagnecaron658 Рік тому

      I'm convinced that all of these finance jargon, unnecessary extra steps, and weird math are used to scare away hard-working people from claiming what their companies actually owe them for all of their hard work and for this sole reason I make sure I use an advisor.

    • @harleycartley3138
      @harleycartley3138 Рік тому

      My method is to buy quality firms, anticipate to hold them regardless of what happens, pay up but not too much, keep track, sell only when necessary, and be ready to course correct.

    • @stanleyfujiwara1394
      @stanleyfujiwara1394 Рік тому

      When it comes to stocks and investing, most people don't know where to start. Fortunately, great investors of the past and present can provide us with guidance

    • @nataliehinnes5221
      @nataliehinnes5221 Рік тому

      I googled the man you mentioned, and after going through his credentials, I can tell he's a pro, I'll be writing him a mail shortly

  • @gabrielacarranza542
    @gabrielacarranza542 3 роки тому +3

    I dont know how I found your channel, but I LOVE IT!!!!

  • @rrr826
    @rrr826 2 роки тому

    But where do you invest??? How do you buy? Which store ?

  • @kenmarquis5320
    @kenmarquis5320 4 роки тому +1

    Hey Marko,
    What is the relevance of the number of 72? You explained the denominator as the number of set periods, but where did 72 come from and how is it a reliable number to calculate against?

  • @tommy2big575
    @tommy2big575 3 роки тому

    Finally a video CLEAR and STRAIGHT TO THE POINT! Thank you! you have just gained another subscriber and I left a 👍

  • @srbrunocell
    @srbrunocell 2 роки тому +2

    You are HILARIOUS and make learning fun!! Thank you for being candid!

  • @MrGravity304
    @MrGravity304 Рік тому +101

    Despite the fact that stock prices fluctuate, what is the best method for capitalizing on the current market? I'm still undecided about investing $400k in my stock portfolio.

    • @NotyourBusiness-urto6
      @NotyourBusiness-urto6 Рік тому +2

      The market is volatile at this time, hence I will advice you get yourself a financial advisor that can provide you with entry and exit points on the share/etf you focus on.

    • @MiddleclassAmerican-7220
      @MiddleclassAmerican-7220 Рік тому +1

      I was recently through an investing nightmare during the crash in march 2020. With the assistance of my advisor I have so far grown my dwindling portfolio of $145k to $480k

    • @MrGravity304
      @MrGravity304 Рік тому +2

      Pls who is this coach that guides you? I’m in dire need of one

    • @MiddleclassAmerican-7220
      @MiddleclassAmerican-7220 Рік тому +5

      My consultant is Nicole Desiree Simon She has since provide entry and exit points on the securities I focus on. You can look her up online if you care for supervision.

    • @MrGravity304
      @MrGravity304 Рік тому

      Thank you for the lead. I searched her up, and I have sent her an email. I hope she gets back to me soon.

  • @Avilov08
    @Avilov08 4 роки тому

    Where did you get the 72 in the first place? What is the basis? Thanks.

  • @Vexen89
    @Vexen89 4 роки тому +8

    When I first watched one of your videos, I wasn't too into it. A little monotoned. The channel kept showing in my feed so I watched a few more and That joke "It's a government stork" has me laughing and subscribing!! Plus the content is very informative and good-to-know stuff.

  • @blairkinsman3477
    @blairkinsman3477 2 роки тому

    Thanks Marko .. 9 .. how do I join the wait list for the UA-cam monetizing ?

  • @bryanlettow4389
    @bryanlettow4389 3 роки тому +21

    More valuable than 90% of what I was taught in HS

  • @dydxsolutions2502
    @dydxsolutions2502 4 роки тому +3

    Marko, this concept is simply awesome... great video. Thanks a million

  • @DanielIles
    @DanielIles 5 років тому +75

    Love how you break this down. Like a math teach that is actually good at his job haha!

  • @amyduhon6978
    @amyduhon6978 4 роки тому +1

    This is very helpful! One more thing we did not learn in school. Thank you so much! 👍

  • @jessicaweems5652
    @jessicaweems5652 2 роки тому +1

    Amazon prime stork that's a great one , this video was well put together thanks for the information.

  • @alexexplainsmoney4124
    @alexexplainsmoney4124 5 років тому +1

    9 years. Thanks for the info Marko! I hadn't heard of the rule of 72 being applied to other types of growth such as your UA-cam channel example.

  • @lacyhall918
    @lacyhall918 Рік тому +1

    Great idea to show my students. Thank you

  • @drunken_moose
    @drunken_moose 4 роки тому

    Does this apply when the rates are varying over time? Let's say I invest in the stock market for 10 years and the returns vary from +30% to -20% but the average over that period is 7.2%. Does 72/7.2=10 years still work? We can ignore dividends to keep it simple. Thanks.

  • @kanejobling7862
    @kanejobling7862 3 роки тому

    Do you have to re invest the dividends for this to work?

  • @HexagonASMR
    @HexagonASMR 5 років тому +16

    I had to watch this twice to completely grasp the concept. Then I realized it was right (or close enough)!!!

  • @tonyj8947
    @tonyj8947 5 років тому +2

    Fantastic!! video...I liked it until the college part..lol. The big question is What investment will pay at 9% Steady?

  • @robinlee232
    @robinlee232 4 роки тому +50

    "It's a tasteless joke but, I don't care." Way to go! 😁😂👌

    • @jbthajugganaut793
      @jbthajugganaut793 3 роки тому +1

      Tasteless but it the truth.

    • @ikejime77
      @ikejime77 2 роки тому

      😁😂👌😁😂👌😁😂👌😁😂👌😁😂👌

  • @dimaster316
    @dimaster316 5 років тому +2

    It will take 9 years for the investment to double. BTW great channel. I show my little sister these videos. Thank you for being such a great teacher

  • @JDRichard
    @JDRichard 2 роки тому

    Brilliant, I had never heard of this rule as well and I spent 6 years in University studying engineering. All of my math was way too complex and pretty much of no use.

  • @1lacas
    @1lacas 4 роки тому +2

    Bravo Marko, tvoj kanal je jedan od boljih.

  • @likfoon3168
    @likfoon3168 5 років тому

    Great video! What mic are you using? It sounds awesome!

  • @LMG6989
    @LMG6989 5 років тому +5

    9 years and thank you for the knowledge you share!

  • @lalalovengun
    @lalalovengun 4 роки тому +1

    I love everything about this!! Your delivery was educational and entertaining!! Thanks for breaking it down with style! NEW SUBSCRIBER!!

  • @JapGujral2000
    @JapGujral2000 Рік тому +1

    What if time & Future value,PV is given and you have to find Rate of interest

  • @RiantHoff
    @RiantHoff 5 років тому +31

    Actual exact formula: years_to_double = log(2)/log(1+(year_interest/100))

    • @austintomkewitz7206
      @austintomkewitz7206 5 років тому +3

      Hahahahaha you said log 2 and log 1 you said log and I just got done pooping hahha hah

    • @RiantHoff
      @RiantHoff 5 років тому +4

      @@austintomkewitz7206 change your pants then

  • @44southtexas
    @44southtexas 5 років тому +1

    How do you differentiate if it’s months or years? In your example if you were to check answer and do 72/4=18 how would you know it’s not years

  • @richii099
    @richii099 4 роки тому +1

    Keep up the good work Marco! This is a'll a numbers game and it is what the next generation must have some basic knowledge - i have mates in their 30-40s who know nothing about this

  • @arifali6762
    @arifali6762 3 роки тому +1

    Great info delivered in a great way. 🙏

  • @ingunawan
    @ingunawan 5 років тому

    Can you make a vid on how to calculate investment rate of return? By considering all regular contribution you make and re-invested dividends??

  • @yayafadamsuretv646
    @yayafadamsuretv646 2 роки тому

    Hello, this video gave me a lot of info. Is it possible that you do a video for Rule of 114 & 144?? please it would be a great help!

  • @davelackey5943
    @davelackey5943 4 роки тому +1

    I study this in college this is one of the better explanations do you understand thank you

  • @natesytacct
    @natesytacct 4 роки тому

    It's good that you're teaching this. An even simpler rule of thumb to know that is based off this is that the stock market doubles your money on average every 10 years in real terms and every 7 years nominally. This is assuming typical S&P returns of 7% real and 10% nominal, and of course is not guaranteed, but that's the average result (so a 20-year old can see that every $1k they put in the stock market is worth $16k in the dollars of the same year retiring early 60s). On a tangeant, I think knowing the difference between real inflation-adjusted growth and nominal pre-inflation growth is one of the most important things people can know as well.

  • @KevinWood44
    @KevinWood44 4 роки тому +8

    The people that would be offended by that joke would not be watching a video on finance LOLLL 😂😂

  • @Wakeensito
    @Wakeensito 5 років тому +4

    What should be some of my first investments going through college?

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +4

      yourself

    • @sweis12
      @sweis12 5 років тому +4

      Knowlage. For 100 bucks you can buy a lot of books on amazon. So far i have read " rich dad poor dad," and "how to win friends and influence people " they both have great material.

  • @anitanit4050
    @anitanit4050 Рік тому +3

    Nice teacher 👍

  • @dougz2855
    @dougz2855 4 роки тому +1

    Thanks for the info. Subscribed and shared!

  • @jrize3228
    @jrize3228 4 роки тому +3

    You should totally do the dance again! Maybe not every video but in unexpected moments of some videos. It really lightened up the topic!

  • @stevevelasquez326
    @stevevelasquez326 4 роки тому

    Hey Marko, what kind of white board do you have? Where did you get it?

  • @matthewellis3004
    @matthewellis3004 Рік тому +1

    Some info is being left out here? : Possibly: the requirement of reinvesting your gains every time they are paid out?? Please help me understand:
    Invest $100k at 9%. 72 divided by 9% should double in 8 years. Do the math: Make $9k per year.. in 11 years you will have $99k... not 8 years...
    So is the missing info that you need to reinvest your earnings to make this accurate? and some investments pay out the 9% /annum monthly. So if you re invest your 1/12th of 9% each month, that should improve your numbers slightly compared to an investment that pays out Quarterly for example...correct?

  • @jaceski5806
    @jaceski5806 4 роки тому

    How much investment money is this based off of? Does it matter if the stock market crashes?

  • @CSLee-yu6ht
    @CSLee-yu6ht 5 років тому +12

    I’ve been using the rule of 72 for 40 years for quick and dirty calculations in my head,,,, people freak at how quick you can get close to the real answer....

    • @ArbitraryThought
      @ArbitraryThought Місяць тому

      It can be freakier if you are able to use the Rule of 40M to estimate the return for 3x, 4x, and 5x as well. Feel free to check out a video I made on it, link: ua-cam.com/video/aCHFgOCX1hU/v-deo.html

  • @anitanit4050
    @anitanit4050 Рік тому +2

    Thanks for the grt work 🙏🇺🇬🇺🇬I have learnt rule 72 💃💃👍

  • @mithila4981
    @mithila4981 4 роки тому +2

    Thanks a lot.. I'm Bangladeshi.. it helps me a lot 😊👌

  • @nothrid
    @nothrid 4 роки тому +1

    You explained it so effortlessly 🔥 Great

  • @billstark696
    @billstark696 5 років тому +3

    Thanks, Marko! Another great video. Sharing ♡

  • @bhuratprateek
    @bhuratprateek 5 місяців тому

    Hi
    I m trying to see if my understanding is correct....
    Picking up from your last example (new born to 18years)
    @4% it will take 18 years- understood
    However @8%, 10k becomes 20k in 8 years
    And now based on compounding (this is were I am trying to find my understanding), at end of 18th year it should be 60k (double for 20k)
    So it is
    Day 1 to 9 years- 10k becomes 20k
    9years 1day to 18years - 20k becomes 40k
    Therefore 20k+40k = 60k

  • @510jesus
    @510jesus 5 років тому +13

    Never heard of this rule before. Easily understood though

  • @AntonioLua12
    @AntonioLua12 5 років тому +5

    I learned it in my high school financial class. It will take 9 years to double at 8%.

  • @elitemal87
    @elitemal87 5 років тому +7

    ZING!! with the Amazon Prime stork joke haha

  • @darthwackyvideosHe
    @darthwackyvideosHe 4 роки тому +9

    outstanding video. I'm a financial advisor and teach this to my clients. I have a double bachelors in accounting and financing. In my 5 years of college I never learned this until I became an advisor. The banks, mortgage inc, and credit cards companies don't want you to know this. Keep you poor and them rich. Real financing is 5th grade level math. There are plenty of books at your local library or local book store that teach real usable financing for the average joe.

    • @OrlandoJurado
      @OrlandoJurado 2 роки тому

      so college was a waste of time for ya?lol

    • @darthwackyvideosHe
      @darthwackyvideosHe 2 роки тому

      @@OrlandoJurado Unfortunately yes. If I could do it again, I would not go to college and waste $55k dollars. Sometimes you got to learn the hard way.

  • @ciscocarrizales5486
    @ciscocarrizales5486 5 років тому +5

    8th WONDER OF THE WORLD !! Compound Interest can either work for you or against you. You can do the same Rule of 72 with credit cards.

  • @wehavecookies33
    @wehavecookies33 5 років тому

    This guy...I watched like 5 vids not understanding then this guy popped up thanks man🔥

  • @rlee1231
    @rlee1231 4 роки тому +2

    Thank you! This was a great help.

  • @ujjwalrao6832
    @ujjwalrao6832 Рік тому

    would have appreciated if you explained how this formula was derived sir

  • @westdrif9749
    @westdrif9749 5 років тому +4

    You look like you had a lot of fun making this video. Great stuff. I love it.

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +1

      I have fun in all my videos but this one especially :)

  • @charliebear381
    @charliebear381 5 років тому +2

    Thank you. I’m getting Into this investment stuff and I really needed this.

  • @DaMaster2180
    @DaMaster2180 5 років тому +4

    Your videos are getting funnier Marko. Keep at it! Didn't know this rule until now. Thanks!

  • @will-financialliteracy-fin9369
    @will-financialliteracy-fin9369 5 років тому +7

    Great tool 👌. I like the way you explained it broken into 3 examples!

    • @WhiteBoardFinance
      @WhiteBoardFinance  5 років тому +3

      Thank you :)

    • @FlamingBasketballClub
      @FlamingBasketballClub 5 років тому +1

      What's your channel about?

    • @will-financialliteracy-fin9369
      @will-financialliteracy-fin9369 5 років тому +1

      @@FlamingBasketballClub I'm on the road to financial Independence, starting from a negative net worth. I'm sharing everything I know along the way (including investing in real estate) to try and help others out.

    • @RealLifeMoney
      @RealLifeMoney 5 років тому +2

      @@will-financialliteracy-fin9369 Thats awesome man! Keep it up and the rule will be in your favor! ;)

    • @will-financialliteracy-fin9369
      @will-financialliteracy-fin9369 5 років тому

      @@RealLifeMoney I can only hope my friend! We are all on that path in some way if we are here, so keep it up!

  • @internetidentity6520
    @internetidentity6520 5 років тому

    Hi Marko! Love your vids, watch them religiously. Can you make a video about no cash refinancing and how equity works in this instance? It’s almost impossible to find info on them because everyone is pushing the cash out option.

  • @PhatMeatGreZ
    @PhatMeatGreZ 5 років тому +3

    9 years to double your investment - Great video!!!

  • @apeterson23
    @apeterson23 2 роки тому

    So in terms of inflation, If I have $10,000 and inflation is 9%... It would take 8 years for my money to have half the buying power? Is that correct?

  • @scottcped
    @scottcped 4 роки тому +9

    I was just talking about this two days ago with a friend.

  • @magnusandersen8898
    @magnusandersen8898 5 років тому +5

    This is the most interesting and funny video about finance I have ever seen.
    Also, you make it very easy to understand
    Very nice

  • @Aminorsnickle
    @Aminorsnickle 5 років тому

    You're very funny and entertaining, I don't care how corny, when present the info very well I wasn't bored, will recommend to my less financially smart friends, but definitely, not so much to my artsy friends.

  • @adityamathur2718
    @adityamathur2718 7 місяців тому

    6:02 "you're now ready to hit wall street"😅

  • @syedaaslam8436
    @syedaaslam8436 4 роки тому

    Thank you
    Can you explain mutual funds?

  • @sammie7752
    @sammie7752 3 роки тому +1

    You killed it with the stand up comedy

  • @duneme
    @duneme 5 років тому +3

    Do something on Compound Interest (returns) as it will more complete your page!

  • @jeremywatkins4095
    @jeremywatkins4095 5 років тому +3

    Marko, where did you learn this rule of 72?

  • @carthy2024
    @carthy2024 5 років тому +5

    0:20 Are you spying on me how do you know I'm watching this at 3am

  • @mr.shahzad4962
    @mr.shahzad4962 5 років тому

    VERY INTERESTING AND INFORMATIVE

  • @Answers721
    @Answers721 5 років тому +12

    Rule of 72 will give you a correct answer of years and months down to about 5%. For example, the Rule of 72 might give you a answer to double your money in 7 years 11 months. Where if you did the calculation in Calculus, it might give you a real answer of 7 years 5 months. So the rule of 72 is much easier and gives you close to the right answer anyway.

  • @katieomari
    @katieomari 3 роки тому +2

    Never has a math lesson made me laugh! Great channel

  • @bengom1279
    @bengom1279 24 дні тому

    How do you work it out with compounding? For the baby example it would be more than 40k over 18 years with compounding wouldn’t it?

  • @sammie7752
    @sammie7752 3 роки тому

    My answer is 9. Great video Professor Marko. By the way thanks for introducing me to M1. Nice format

  • @pparker768
    @pparker768 5 років тому +2

    Excellent , thanks . Had a smile too.

  • @cookielopez1271
    @cookielopez1271 3 роки тому

    What do you mean by found a new investment?..

  • @TahirKhan-jf3kk
    @TahirKhan-jf3kk 4 роки тому

    Nice video, but could you please explain what this 72 is all about?

  • @shubham.machhi
    @shubham.machhi 4 роки тому +2

    The math portion gave me flashbacks of Khan Academy LMAO 😂