How much is the contents of your shopping basket? How much is the 30%OFF of 1280 $? It's a simple application recommended for people who are not good at calculations. ---function--- · Enter the price of the item in the shopping cart and display it on the list. I understand the total amount and the tax included amount. · For discounted products, enter the original price and discount rate and display the discounted price. You can understand how much money it is. · The discounted price can be added to the total amount with one click. It's so simple that anyone can use it easily. If there is a problem, demand etc, thank you.