Percentage Discount Calculator

Instructions: these 4 calculators are very useful when shopping; particularly during end-of-season sales or commercial promotions. They allow you to calculate the applied discount knowing its percentage (the first), the price to pay after the discount is applied (the second), the original price without the discount, and the discount percentage knowing its absolute value in euros to be subtracted from the original price. For each calculator, the number of decimal places can be set. To perform the calculations online, click the yellow "Calculate the result" button; to clear the entered figures, click "Clear all data".
Note: for decimals use a period (.), not a comma (,).