I need a little help on calculating time difference then multiplying that result times an hourly rate.
Start Time is 9:30 AM
End Time: 1:00 PM
Hours worked: 3.5
Hourly Rate: $40
Therefore, the amount to record to invoice = $87.50
I'm having a problem with my time subtraction to return 3.5 as number rather than 3.3 as time