=CUMPRINC(rate, nper, pv, start_period, end_period, type)
=CUMPRINC(0.05/12, 360, 200000, 1, 12, 0)
This formula calculates the cumulative principal paid on a loan with an annual interest rate of 5%, a total of 360 monthly payments, a loan amount of $200,000, for the first 12 payment periods (months), with payments made at the end of each period. The result is the total principal paid in the first year.
=CUMPRINC(0.04/12, 240, 150000, 13, 24, 0)
This formula calculates the cumulative principal paid on a loan with an annual interest rate of 4%, a total of 240 monthly payments, a loan amount of $150,000, for payment periods 13 to 24 (second year), with payments made at the end of each period. The result is the total principal paid in the second year.
The CUMPRINC function calculates the cumulative principal paid on a loan or investment between two specified periods, given a constant interest rate and periodic payments.