Financial FormulasHow much your friendly neighborhood pawnshop or bank profits just because you need that killer amp! Simple Interest Future ValueFV = PV * (1 + ( i * N ) ] FV  future value (or maturity value) Simple InterestI = PV * i * N PV  principal or present value Compound Interest Future ValueFV = PV * ( 1 + i )^{N} PV = present value Compounded Interesti = FV  PV PV = present value AnnuityFV = PMT * [ ( ( 1 + i )^{N}  1 ) / i ] FV = future value (maturity value) Simple Interest Amortized Loan FormulaPV * ( 1 + i )^{N} = PMT * [ ( 1 + i )^{N}  1 ] / i PMT = the payment per period
