Discounting an Annuity to a Present Value 15. What is the value today of a series of $1,000 payments, to be received at the end of each month for three years, when discounted at 10 percent annually? Determining a Series of Equal Payments Necessary to Amortize a Present Value 16. What is the monthly payment on a $250,000 loan for 25 years at 10 percent interest