Printing calculator features a two-color ink printer that allows you to quickly see both positive and negative numbers to help prevent reading errors. 12-digit display showcases crisp, sharp numbers, and is angled to keep your display conveniently positioned in a comfortable, easy-to-read location. Large keys are appropriately positioned for fast, accurate data entry to help minimize input errors. Calculator with a 3.5 lines-per-second print speed also includes sign change, tax calculation, cost/sell/margin calculations, change functions, decimal selector and more.