Calculate tax and exchange rates and get fast, accurate solutions to basic math problems with this Staples 8-digit-display calculator. Solve financial functions and get precise answers to common math problems with this 8-digit display calculator. The built-in percentage, tax and exchange rate functions make this device ideal for handling financial calculations, while the large 8-digit angled display ensures easy visibility and clear solutions. This Staples 8-digit-display calculator stays consistently energized and ready for use with a built-in solar panel. Desktop calculator offers 8-digit LCD display for convenient viewing. Easy-to-use solution for all of your basic math needs. Dimensions: 5.63"L x 4.02"W. Can be operated from solar power or battery, so you can use it both day and night. Streamline financial calculations with currency conversion and tax calculation functions. Percent and sign change functions help you solve a variety of mathematical problems. Auto power-off feature prevents unwanted or unintentional use of the battery. Angled display is easy on the eyes. Comes in gray/silver color.