When you are selling goods or services, it is important to know the value of your products or services. It is also important to know how much tax you have to pay. The good thing is that our app can calculate both the value of your products and the amount of tax you have to pay.

So, if you want to sell a good or service, you just need to enter the price and the app will calculate how much the product is worth and how much tax you have to pay.

In addition, the application allows you to choose the tax rate and the currency (you can choose between dollars, euros, pounds, and other currencies).

The application also allows you to change the color of the font and the background.