Desktop printing calculator is packed with important business functions in a portable size to control your finances wherever life takes you. Double-check function helps minimize errors for more accurate calculations. The built-in clock and calendar allow you to view the time and date on the display or print them out. Backspace button allows you to quickly correct minor mistakes for time-saving operation. Sign change allows you to immediately change the sign of negative or positive numbers for versatile performance. Item count allows you to easily keep track of your supplies without any additional counting. Printing calculator also includes currency conversion, tax calculation, business calculation, time calculation, grand total, memory, percentage and more.