Victor Business/Financial Calculator V12 Financial calculator works in both RPN and algebraic formula model. Features more than 120 built-in functions with programmable option RPN. Programmable up to 400 steps. Calculate loan payments, interest rates and conversions, standard deviation, percent, TVM, NPV, IRR, cash flows and bonds. Extra large 10-digit angled display and raised platform is designed for ergonomic use and easier reading. Design also features a sleek black with soft touch keys.