Sharp VX-2652H 12-Digit Heavy Duty Commercial Printing Calculator, Refurbished12 digit calculator is perfect for the everyday advanced user, especially in a busy office setting. Professional heavy duty durability is perfect for power users. You can count on the fast and reliable 4. 8 lines per second ribbon printer. Professional keyboard with sculptured keys were designed for fast and comfortable operation with contoured Plus Equal and Minus Equal keys. Other functions include: mark up key for calculating cost sell margin