Calculator 2tax

A simple and easy-to-use calculator that supports two consumption taxes. You can view the input formula as you type, and calculation results can be stored in history along with the calculation formula. It performs calculations in input order (like a general calculator).

This extension also features a standard-precedence mode. For example, 2 + 3 × 5 equals 25 in input-order mode, while the same expression equals 17 with proper precedence. Each result is saved in history together with the corresponding formula.