Find the sale price, savings amount, and discount percentage. Work backwards from any two known values.
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Knowledge Base
Multiply the original price by the discount percentage and divide by 100 to get the savings amount. Subtract savings from the original price to get the final price. For example: $80 item with 25% off → savings = $20 → final price = $60.
Divide the savings (original minus final price) by the original price, then multiply by 100. For example: $100 original, $75 final → savings = $25 → discount = (25/100) × 100 = 25%.
In '% Off' mode you enter the original price and discount rate. In 'Final Price' mode you enter both prices and it calculates the discount percentage and savings. In 'Savings Amount' mode you enter the original price and how much you save.
For stacked discounts, apply them sequentially: first discount reduces to an intermediate price, then apply the second discount to that intermediate price. They do not simply add together.