The Canon P200-DHIII has the perfect combination of useful and sophisticated features for the busy professional. This high-end desktop, two-color printing calculator incorporates business and sales calculation keys, which allow you to calculate the selling price or discount, based on the cost and desired profit margin. Another time saver is the tax feature. You can store a rate that you use frequently and use it often eliminating many steps of your calculation. Finally, the newest addition is the built-in calendar and clock. You can view the time and date on the display of print them out.