Wedding DJ Vs Club DJ MONEY & Objectives- What's The Difference?

Here's my math:
Wedding DJ - $2,000
Club DJ - $400
Full Time Wedding DJ Per Event - 30 Hours - Hourly Rate of $66.66
Club DJ Per Event - 6 Hours - Hourly Rate of $66.66
Wedding DJ Expenses:
$2,000 - $600 = $1400 Total = Hourly Rate of $46.66
Club DJ Expenses:
$400 - $50 = $350 = Hourly Rate of $58.33