Discount Calculator

When this calculator helps

A percentage off is quick to advertise and slow to work out in your head, especially mid-shop with a queue behind you. This calculator gives you the sale price and the amount saved the moment you see a '25% off' tag or enter a voucher code — across seasonal sales, clearance reductions, loyalty offers, student and staff discounts, and the big cross-border promotions that sweep the euro area at the same time each year.

It earns its keep before you buy as well as at the checkout. When one shop shows '30% off €90' and another simply lists 'now €65,' reducing both to a single euro figure makes the cheaper option obvious. And because promotions across Europe often stack a further reduction on already-marked-down stock, it helps to know how to chain discounts properly so a deal that looks enormous turns out to be exactly what it is.

How to read your result

You get two numbers: the sale price you pay and the amount saved against the original. Compare the saving with the headline to be sure it adds up — a genuine 25% off €80 should show €20 saved and a €60 sale price. If the saving comes out lower than you expected, the discount is likely being applied to a smaller base than you assumed.

The point that catches people out is stacking. Two discounts never add together. A 20% reduction followed by an extra 10% off applies the second cut to the already-reduced €64, not the original €80, so you reach €57.60 — a real saving of 28%, not 30%. Successive percentages multiply rather than sum, which is why a string of generous-looking reductions saves less than the headline figures added up. Pass each reduction through the calculator in turn to see the true running total.

A worked example

Imagine a jacket ticketed at €140 with a '35% off' sale, plus a loyalty voucher for a further 10% off sale items. Apply the 35% first: €140 becomes €91, a €49 saving. Now apply the 10% to that €91, not to the original €140 — that removes €9.10, leaving €81.90. Your total saving is €58.10, which is about 41.5% off the original, not the 45% you would get by adding 35 and 10. The deal that sounded close to half price is comfortably short of it, and the calculator shows that gap before you decide.

Common mistakes to avoid

Most discount errors come from how the percentages are combined and what base they apply to.

• Adding stacked percentages together — '20% then 10%' is 28% off, not 30%, because the second reduction applies to the lower price.
• Confusing '% off' with '% of' — 25% off means you pay 75% of the price, not 25% of it.
• Assuming the 'was' price was genuine; EU rules require it to reflect the lowest price applied in the 30 days before the reduction.
• Comparing offers by their headline percentages rather than the actual euro price you would pay.

Euro-area pricing and VAT notes

In most EU retail settings the price on the tag already includes VAT, so the discounted figure this calculator gives you is the all-in amount you pay — there is nothing further to add at the till. The catch is that VAT rates are set nationally, not EU-wide: standard rates run from the high teens to the high twenties depending on the country, and many goods sit at reduced rates. Because the tag is gross either way, the discount simply applies to the price shown, whatever the local rate happens to be.

The exception is business-to-business buying, where quotes are commonly shown net of VAT. In that case you take the discount on the net price first and then add the applicable national VAT to the reduced net, calculating the two in sequence. For ordinary consumer shopping, though, the sale price here is the final cost — reach for the VAT calculator only when you are working from net B2B figures.