Sales Tax Calculator for Android

Input, then soon calculate!Write calculation formula!- FunctionsThere is no "equal" button but,when you input numbers or formulas, soon calculation result is displayed!This app can do plus, minus, multiple, divide calculation!By "%OFF" button, you can do discount calculation!By "Tax Free" button, you can calculate tax free price and the other price together!You can set sales tax.There is "Save" button to save calculations and you can see those on calculation history!Content rating: Everyone