Discount Calculator

Multiply the original price by the discount percentage, then subtract. Formula: Sale Price = Original × (1 − Discount% ÷ 100). Example: 30% off £90 = £90 × 0.70 = £63 sale price, saving £27. This calculator handles any price and any discount percentage instantly.

Divide the sale price by (1 − discount rate). Example: if an item is £63 after a 30% discount, original = £63 ÷ 0.70 = £90. Useful when a store shows only the sale price and percentage off, and you want to verify the claimed original price.

Discount % = ((Original Price − Sale Price) ÷ Original Price) × 100. Example: item was £120, now £84. Discount = ((£120 − £84) ÷ £120) × 100 = 30%. This lets you compare deals across stores.

Stacked discounts (e.g. 20% off, then an extra 10% off) do not simply add up. Apply them sequentially: £100 with 20% off = £80, then 10% off £80 = £72. The combined saving is 28%, not 30%. Be cautious when retailers advertise "combined discount" totals.

A discount reduces the price at the point of sale — savings are immediate and guaranteed. A rebate is a partial refund after purchase, often requiring a claim form. Rebates can be a marketing tactic since many go unclaimed. With a discount your savings happen instantly at checkout.