Easy to Carry, This Handheld Desktop Calculator, perfect choice for office and home. Screen: LCD Large Display Main Functions The calculator performs the major basic functions including addition (extra large key), subtraction, multiplication and division & percentage. ON/AC key: on/clear GT key: summation calculation, press = or % key, the result will add into the calculation ( press one time to display summation, while press twice to clear the summation ) MU key: profit and loss operation key M+ key: memory plus M- key: memory minus MRC key: memory total value and clear memory key ( press one time to display memory storage, press twice to clear memory ) Large Keys The keys of Basic Calculator are large and it is not easy to hit the wrong key by accident. Package: 1 pc calculator