Discount Calculator
Calculate discounted prices, savings, reverse discounts, stacked offers, basket totals and tax or VAT after discount. Get a clear sale-price breakdown with worked steps and comparison tables.
Calculator
Price before discount.
Percentage taken off the price.
Stacked discount settings
Discounts are applied one after another, not simply added together.
Basket settings
Use unit price, quantity and an optional fixed discount.
Tax/VAT settings
Apply tax after the discount is taken off.
Compare discounts
Compare common discount rates against the same price.
Quick examples
Load common discount tasks instantly.
Worked steps
Receipt-style summary
Discount comparison table
| Discount | Saving | Final price | Multiplier |
|---|
How discount calculations work
A discount reduces the original price by a percentage or fixed amount. To find a percentage discount, multiply the original price by the discount rate.
final price = original price − saving
To reverse a discount, divide the sale price by the remaining percentage. For example, if £75 is the price after 25% off, it represents 75% of the original price, so the original price is £75 ÷ 0.75 = £100.
Stacked discounts are applied one after another. A 20% discount followed by 10% off is not 30% off; it is 28% off because the second discount applies to the already reduced price.
Common discount uses
Shopping sales
Work out the final sale price and how much you actually save.
Stacked voucher codes
Calculate multiple discounts applied one after another.
Business pricing
Check discounts, margins and customer offers before quoting.
Basket totals
Include quantity, fixed discounts, fees and tax/VAT in the final price.