Formula Used
Monthly payment = P × [r(1 + r)^n] ÷ [(1 + r)^n − 1]
P = principal, r = periodic interest rate, n = number of payments.
How the formula is applied
The calculation links Loan Amount ($), Interest Rate (%) and Loan Term (Years) to monthly payment. A payment figure depends on the number of installments and interest per installment. Comparing equal monthly prices without comparing term can hide a higher total cost.