Discount Calculator

Multiply the original price by the discount rate as a decimal. For a 25% discount on an $80 item, compute <code>$80 &times; 0.25 = $20</code> as the savings, leaving a $60 sale price. The general formula is <code>Sale Price = Original &times; (1 &minus; Discount% / 100)</code>. If you only know the sale price and want the percentage off, use <code>Savings / Original &times; 100</code>.

Subtract the discount amount from the original price: <code>Sale Price = Original &minus; Discount$</code>. For instance, $10 off a $45 item gives $35. To convert a flat discount into an equivalent percentage, divide the discount by the original and multiply by 100 &mdash; $10 off $45 is about 22.2% off, so if another retailer offers 25% off, the percentage deal wins in this case.

A percentage discount removes a proportion of the price, so its dollar value grows with the original price. A flat discount removes a fixed amount regardless of price. Percentage deals favour expensive purchases; flat-dollar coupons favour cheaper ones. At exactly <code>Flat$ / Discount%</code> they are equivalent &mdash; e.g. $10 off and 25% off meet at $40; above $40 the 25% coupon wins, below $40 the $10 coupon wins.

In the US, sales tax is applied to the discounted price, not the original. So on a $100 item at 20% off with 8% tax: the sale price is $80, and $80 &times; 1.08 = $86.40 final. Many US retailers show the discount on the receipt first, then add tax to the subtotal. The EU and UK show prices inclusive of VAT, and discounts are taken off the VAT-inclusive price, which simplifies the math but reduces apparent savings versus the headline percentage.

Stacked percentage discounts multiply, they do not add. Two 20% discounts applied sequentially equal <code>1 &minus; 0.80 &times; 0.80 = 36%</code> off, not 40%. A percentage then a flat dollar coupon goes percentage first (on the original), then flat dollar on the reduced subtotal. The order really does matter when a flat coupon is involved: $20 off then 25% off gives a different final price than 25% off then $20 off. Always check the retailer&#39;s stacking rules at checkout.

Work backwards: <code>Original = Sale / (1 &minus; Discount% / 100)</code>. For example, a $60 item marked 25% off was originally <code>$60 / 0.75 = $80</code>. For a flat-dollar discount, add the coupon amount back: $40 after a $15 coupon was originally $55. This is useful when retailers advertise only the sale price and a percentage-off label.

Yes. The dollar sign in the interface is just a label &mdash; the math is pure arithmetic. Enter prices in euros, pounds, yen, or any other currency and the results are accurate. Keep in mind that in many European and Asian markets retail prices already include VAT or GST; if so, apply the discount to the tax-inclusive price and leave the tax field at zero.

Real savings compare against the price you would realistically pay, not an inflated &quot;original&quot; price. Retailers sometimes raise the reference price briefly before a sale to make the discount look larger &mdash; a practice regulated in the EU by the Omnibus Directive, which requires the lowest price from the previous 30 days to be used as the reference. In the US, the FTC prohibits deceptive reference pricing but enforcement is inconsistent. Always compare against real-world prices on comparison sites before trusting a &quot;70% off&quot; tag.

The math is identical &mdash; any sale price calculator that respects the standard formula will produce the same dollar number for the same inputs. The differences are workflow: Omni Calculator and similar sites usually require accepting cookie banners and are wrapped in dense ad layouts, while this tool runs entirely client-side, has no signup, and supports stacked coupons and tax in a single screen. If you compare a "70% off" deal against another retailer, the discount percentage calculator you use does not change the answer; only the inputs do.

Yes. Enter the original retail price and the percentage or flat-dollar markdown, and the tool returns the sale price plus your savings. For successive markdowns (e.g. an item discounted 25%, then again 20% the following weekend), apply them in sequence: take the first sale price as the new "original" and run the calculator a second time. The final discounted value reflects multiplicative stacking, which is how nearly all US and European retailers actually compute markdowns at checkout.