MAI SL Financial Maths Using the Finance Solver Compound Interest Loans Annuities Number of years Number of payments/instalments (usually number of years x 12 since usually monthly payments) Number of payments/instalments (usually number of years x 12 since usually monthly payments) N I% Interest rate for the year (APR) PV The original investment amount. Negative - you’ve ‘given’ the money away The amount borrowed. Positive - you have the money in your possession Lump-sum deposited originally. Negative - you’ve ‘given’ the money away PMT 0, unless further regular deposits are being made into the investment (in which case will be negative) Regular repayment of the loan. Usually monthly. Negative - you’re giving the money away Regular payment received. Positive - you get this money. FV The value of the investment after n years (will be positive) The amount left to repay on the loan after n payments. Set FV = 0 when working out how to pay off the loan over n instalments. The amount left in the ‘pot’ after n payments. Set FV = 0 if you want to find n/PMT etc so that annuity is ‘used up’. PpY Number of interest payments made into the account each year (often 1) Number of payments per year (often monthly i.e. 12) Number of payments per year (often monthly i.e. 12) CpY Number of compounding periods per year Number of compounding periods per year, usually same as PpY Number of compounding periods per year, usually same as PpY Keywords: APR amortization