Minor fix
It is a very convenient calculator for grocery shopping.
[As Discount Calculator]
Calculation such as "5% discount" and "10% discount" can be done with one touch. It is very helpful at shopping time.
If you push the Discount button continuously, you can also calculate 5% discount etc. from 10% discount.
[Customize buttons]
Values of the discount button can be freely changed from 0% to 99% on the setting screen.
[History (Total amount of grocery shopping)]
Each time you press the [+] button, you can save the entered price , discount rate, etc. and check the total amount.
[Theme function]
The appearance color of Shopping Calculator can be selected from orange, blue and black.
