12 digit calculator is perfect for the everyday advanced user, especially in a busy office setting. Extra heavy duty durability is perfect for power users. Features financial, loan and time calculations. You can count on the fast and reliable 5.2 lines-per-second ribbon printer. Easy to use financial, loan and time calculations help you figure net present value, future value, installment loan payments, days between dates and even allows you to print an amortization schedule in just a few keystrokes. Cost/sell/margin keys make for quick and easy profit margin calculations (simply enter two variables and the third automatically appears). Other functions include: two independent tax keys, constants in multiplication and division, percentage add-on and discount, time/date, change sign key, square root function, large-size add and subtract keys, item count, fully selectable decimal settings, date/non-add key, and selectable rounding switches and 4 key independent memory. AC Powered. 3 Year Manufacturer's Standard Warranty.