Discount Calculator
Find the sale price, how much you save, and the effective percent off.
Percent offCoupon (£ off)
Sale price
You save
£15.00
Effective discount
25.0% off
You pay £44.99You save £15.00
Ad slot (below results · replace with network code)
How Discounts Are Calculated
- Percent off: sale price = original × (1 − percent ÷ 100). £59.99 at 25% off = £44.99.
- Amount saved: original price − sale price.
- Spend & save coupon: the pound discount stacks once per full spend threshold reached.
- Effective discount: amount saved ÷ original price × 100%, useful for comparing offers.
Quick Reference (Percent Off)
| Original | Percent off | Sale price | You save |
|---|---|---|---|
| £59.99 | 25% | £44.99 | £15.00 |
| £100.00 | 40% | £60.00 | £40.00 |
| £250.00 | 15% | £212.50 | £37.50 |
VAT is already included in UK shelf prices, so the discount applies to the displayed price.
Frequently Asked Questions
- How do I calculate a percent-off sale price?
- Sale price = original price × (1 − percent off ÷ 100). For example, £59.99 at 25% off = 59.99 × 0.75 = £44.99.
- How much do I save?
- Amount saved = original price − sale price. With a percent-off deal it equals original price × percent ÷ 100. A 25% discount on £59.99 saves £15.00.
- How does a “spend £X, get £Y off” coupon work?
- The discount applies once for each full £X you spend. On a £320 order with “spend £100, get £25 off,” the coupon applies 3 times for £75 off, making the price £245.
- What is the effective discount?
- Effective discount = amount saved ÷ original price × 100%. It lets you compare offers — for a £75 saving on £320, the effective discount is about 23.4% off.
📅 Last updated: June 2026 · Formulas follow standard banking / tax conventions · Results are for reference only.