The Tax Calc is a simple calculator that starts instantly and fits in your hand. The large buttons are easy to see and press-designed for everyone. There are no complicated functions such as memory, functions, and formulas. A calculator that calculates numbers one by one. The only difference from ordinary calculators is that two types of consumption tax can be calculated at the same time. If you do one calculation, you can get 3 answers at the same time, excluding tax and 2 kinds of tax price