regular_hours_per_month = 23 * 8
regular_hourly_rate = contract.wage / regular_hours_per_month

result = 0
for line in payslip.worked_days_line_ids:
if line.code != 'LEAVE90':
if line.number_of_hours <= regular_hours_per_month:
result += line.number_of_hours * regular_hourly_rate
else:
regular_payment = regular_hours_per_month * regular_hourly_rate
extra_hours = line.number_of_hours - regular_hours_per_month
extra_payment = extra_hours * (regular_hourly_rate * 2)
result += regular_payment + extra_payment

result = result

hope it will help you.

Standard working hours=208
worked hours(Attendance)=221
Overtime=221-208=13
Attendance pora ho toh 1500 basic ana chahiye aur jo overtime ho wo khud he 13hr show kr kay 8 sey multiply krey
Thank You

Thanks @Cybrosys Techno Solutions Pvt.Ltd for your answer i have solved this problem .In your answer after defining the new rule ''overtime" it will not take the overtime hours own its own. so i had to use the bit different approch before the calculation.

@zahra naveed , what's the approach that you used ?

@kenny Hi , i know it might be too late but if you still want this is what i did
hour_per_day = 8
days_in_month = 30
regular_hours_per_month = days_in_month * hour_per_day
regular_hourly_rate = contract.wage / regular_hours_per_month

result = 0
for line in payslip.worked_days_line_ids:
if line.code not in ['LEAVE90', 'OVERTIME']:
if line.number_of_hours <= regular_hours_per_month:
result += line.number_of_hours * regular_hourly_rate
else:
regular_payment = regular_hours_per_month * regular_hourly_rate
result += regular_payment

result = result

can you please write the code .