There is an initial section dedicated to VAT, here you have a VAT calculator.You can enter the digit on which to calculate and calculate amount including VAT and amount excluding VAT using the preset buttons on various tax rates for an immediate calculation.
In this section dedicated to VAT after making the calculation if you want you can store, (locally only on your smartphone).
I use this function to memorize the most frequent operations or to store the monthly or quarterly VAT.
When you want you can view this operations list by accessing the app menu.
In the app there is also a section dedicated to the calculation of the percentage discount. If you want you can store, (locally only on your smartphone).
Here you can enter the starting amount (which is to be discounted) and the discount percentage.
The most common discount percentages can be selected using preset calculation buttons.
The app will show you the discounted amount and the savings. To display pie chart and bar chart, touch the respective icons.
The app is free and free of advertising and requires no special permissions.
If you find it useful or in some way appreciated your review (perhaps with suggestions to improve it), the "will keep alive" making it more useful and updated.