Change function for simple calculation of payment amount and change
Easy calculation of cost, selling price and margin
Frequently used keys have been enlarged to prevent input errors. The number keys and other keys are different colours to increase visibility.
The LCD is angled to improve visibility so that the display is easy to read even when serving customers while seated.
Two-way power supply enables the calculator to be powered by a solar battery or an affordable AA battery. The battery can be easily replaced simply by opening the battery cover.
The casing is shaped to fit the hand and textured to prevent slipping for excellent usability when the calculator is held in the hand, such as when showing the display to a customer.
OFF button is useful to save power!