Initially, the discounted or amortized value of the future stream of quarterly loan payments (cash flows) would be the outstanding or remaining principal of $50,000.
Amortized Value = Annuity Payment x Present Value Annuity Factor = $2,952.37 x 16.93554 = $50,000 The discounted or present value of the loan at any other point in time can be calculated in the same manner, or determined more easily from a traditional loan-amortization schedule.
At this rate of return, the selling price (market value) of the loan would be the present of amortized value of XYZ's remaining payments as originally established in the amortization schedule.