Dear All

i want to ask you if there are any formula to calcute loan with grace period (30,60,90 etc)


by example
Finance: 100,000
Tenure months: 48
Rate: 7.50%

Instalement Amount =-PMT(7.50%/12,48,100000) =2,417.89
but i want to see who to calculete with grace period>

today is 04/9/2017 if 0 grace periode that is mean loan start from 04/10/2017 with Instalement Amount (2,417.89)
i found in my bank system calculator that if we start after 30 or 60 or 90 the isnaltemnt will be
04/10/2017=2433
03/11/2017=2448
03/12/2017=2463
please advice iwth the formula