Casio MH-12-WE Desktop Calculator

Amazon

12-Digits EXTRA LARGE LC-Display Regular percentage calculations Two-way power (Solar + Battery) 3-Digit Comma Markers Double Zero Key 4-Key Memory

Euroffice

Extra Large 12-Digit Display. Performs basic functions, as well as percentage calculations. Includes a backspace key to correct mistakes.

Office Machines

Plastic keys, key Rollover, 3 digit comma markers, double zero key, back space key, grand total memory