During sales, it is sometimes difficult to know the selling price of an item on sale. Therefore, to avoid wasting time, install Sale items calculator on your smartphone. Application is free! 🛒 For Black Friday, summer or winter sales... or simply for shopping in stores, Discount Calculator will be a precious assistance. By installing it on your Smartphone or tablet, you no longer have to stand still for several minutes in front of a product on sale to calculate its final price. 🛒 How to calc