This will be your monthly interest you will use to calculate mortgage payments. I is the interest cost P is principal or the original amount borrowed R is the rate of interest expressed as a decimal. The payment on a loan can also be calculated by dividing the original loan amount PV by the present value interest factor of an annuity based on the term and interest rate of the loan.
From here you can just continue the pattern and it should be apparent that the following recursive formula is true.
I is the interest cost P is principal or the original amount borrowed R is the rate of interest expressed as a decimal. The formula for mortgage payments is P L c 1 cn 1 cn - 1 where L is the loan value n is the total number of payments over the life of the loan and c is the interest rate. These calculations can also be done in a different order 6100 006 00312 0005. Total Interest Paid Total Monthly Payment Amount of Mortgage.