About this item It comes in a sleek dark gray color and can perform even more functions to help anyone succeed in their chosen profession or field of study. BA-II Plus Financial Calculator, Dark Gray: Easy to read, 10-digit display Calculate IRR and NPV for cash-flow analysis Time value of money function helps quickly solve calculations for annuities, loans, mortgages, leases and savings Choose from 6 methods for calculating depreciation, book value and remaining depreciable amount Interest rate conversions allow conversion between nominal and effective interest rates