From Pine Grove Software:
SolveIT provides collection of 40 financial calculators. It includes amortization, loan calculator, balloon, compound/simple interest, bond value and yields, present and future value, annuity, IRR, NPV, and budget. It has adjustable cash flows and rates. It supports extra and skipped payments or deposits, Rule-of-78s, Canadian type loans, APR disclosure statements, and evaluation of loan acceleration scenarios.