I want the source code and APK an android application has the following properties:
1) It asks the user to input a product and price are without IVA and stored in a local database. Noted between the user may more products.
2) When the user selects a product, the application asks for the amount and corresponding IVA. Then calculating the total price of the order.
3) The total price of the order is recorded after another database where the application asks the user registered customer name, the shipping address, name of product ordered.
total price = (price of a product * quantity) + (price * quantity of a product) * IVA
IVA (value-added tax) is a variable of type double between 0 and 1