Discount Calculator
Find out exactly how much you save and what the final price is after a percentage discount. Enter the original price and the discount percentage to get the sale price and total saving instantly.
How It Works
A percentage discount reduces the original price by a given proportion. Knowing the exact saving helps you compare deals and decide whether a sale price is genuinely good value.
The Formula
Saving = Original Price × (Discount % ÷ 100)
Sale Price = Original Price − Saving
You can also calculate the sale price directly with: Sale Price = Original Price × (1 − Discount % ÷ 100). Both methods give the same result.
When to Use This
Use this calculator when shopping sales, applying promotional codes, working out trade discounts, or checking whether a "% off" deal is as good as it looks. It instantly shows both the saving and the final price you pay.
Worked Examples
Example 1: 20% off £150
Saving = £150 × 0.20 = £30. Sale price = £150 − £30 = £120
Example 2: 30% off £89.99
Saving = £89.99 × 0.30 = £27.00. Sale price = £89.99 − £27.00 = £62.99
Example 3: 15% off £400
Saving = £400 × 0.15 = £60. Sale price = £400 − £60 = £340
Example 4: 50% off £299
Saving = £299 × 0.50 = £149.50. Sale price = £299 − £149.50 = £149.50
Example 5: 10% off £1,250
Saving = £1,250 × 0.10 = £125. Sale price = £1,250 − £125 = £1,125
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