Calcuate Tax, VAT, GST or Sales Discount with this simple and easy to use app. User simply enters the number and click percentage button. No learning and instruction are needed. Main Features - Calculate Tax, VAT or GST - Calculate Sales Discount - Regular Calculation with plus, minus, multiplication and division - Calculation is displayed in a list view - Tax, VAT or GST values can be pre-defined - Discount values can be pre-defined - Calculation history can be saved - Calculator supports li