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 an extra large 15 mm tall fluorescent display digits for easy viewing. Contemporary black styling compliments any modern desktop decor. Environmentally friendly this calculator is manufactured with 45% recycled plastic. You can count on the fast and reliable 4.6 lines-per-second ribbon printer. 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 change sign key 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 Power. 3 Year Manufacturer s Standard Warranty.