Sophisticated features in a compact design, for the busy professional the Canon mp11dx-2 has the perfect combination of useful and sophisticated features, compact design, for the busy professional. This desktop, two-color printing calculator incorporates profit margin calculation keys that allow you to calculate the selling price or discount, based on the cost and desired profit margin. In addition, the built-in clock and calendar allows you to view the time and date on the display or print them out. A compact design, for the busy professional or tax time. Be certain with your calculations with Double Check Function. This desktop, two-color printing calculator incorporates profit margin calculation keys that allow you to calculate the selling price or discount, based on the cost and desired profit margin. High-speed ink ribbon printing system to ensure quick and efficient calculations. Cost/Sell/Margin.