Need help for a calculation for a late fee.
I need help for a calculation. In our school if a student pays their tuition fee past 10 days of the month they would be charged for a late fee of, lets say 5%.
Lets say if i input the amount $40.00 and the database detects that it has been past 10 days of the month then there would be a 5% charge to the amount.
Is there a calculation/formula for this?