12-digit commercial calculator features Prompt Logic technology with an interactive display that prompts you for input to calculate installment loans, cost/sell/margin and tax settings. Three-line, 12-digit, liquid crystal display (LCD) shows multiple inputs and results. Load Wizard quickly and easily calculates installment loan payments. Prints 3.0 lines per second in two colors. With cost-sell-margin keys, enter any two variables and the third appears and prints. Two independent tax keys allow you to program two different tax rates, including city/state, city/county and more. Time/date feature displays and prints current time or date. Other functions include delta percent of change, grand total, item count, subtotal, and four-key memory.