By NoteAdvocateAugust 31, 2015Mortgage Note Toolscalculator, Sell Mortgage Note FAQs Calculate the future value of an investment based on periodic, constant payments and a constant interest rate. Enter all the amounts that you pay out in negative and the amounts that you receive in positive. Annual Rate of Interest: Enter in number, like 2.75 or 9.325. Payments made: Monthly Quarterly Half-yearly Yearly Total Number of Payments: Enter the total number of payments. Each Payment Amount: Enter the periodical payment amount. Present Value: This is the PV of the investment. Future Value: