# Calculate Fine Amount

• hello guys

for every month customer is fined like this
customer has to pay for the month before 10th of the next month
for example January month payment should be made in between 1st Jan to 10th Feb if not then customer is fined
Fine amount is 15 per month

this is ware i am stuck, can anybody help me with this

for example today is 6th April 2019

if i enter customer id = 3
this customer has not paid to jan,feb,mar

if i checked jan checkbox
i want to check weather the customer has paid to that month,
if paid do nothing
if the customer has not paid to that month then
check if customer has been fined for that month
if fined then add 15 to the textbox3(Fine)

like this if i checked Jan and feb it should do the same and add 15+15=30 to the textbox3(Fine)
because the customer is finned for 2 months

but if i checked Jan and feb, mar it should do the same and add 15+15=30 to the textbox3(Fine) but not for mar because march 10th has not yet come

hope you understand my problem