https://docs.google.com/spreadsheets/d/10eivpy3fqHGSGBZsdWaerWf-B1KeX4lR7iBqBLpJiJo/htmlview Credit Card Payment Calculator. Sheet1. A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R ... This assumes a single purchase with simplified monthly interest ...