Time value of money (TVM) variables:

I/Y: Nominal interest rate per year (%)

N: Number of comp. periods or payments

PMT: Payment ($)

PV: Present value ($)

FV: Future value ($)

P/Y: Number of payments per year

C/Y: Number of compounding periods per year

P.T. - Payment timing: "END": Payment at the end of payment period

P.T. - Payment timing: "BGN": Payment at the beginning of payment period