--- title: "Discount Calculator | Method Calculator" description: "Calculate the sale price and your savings from a percentage or fixed discount. Stack a second discount, add sales tax or find the original price from the sale price." canonical_url: "https://methodcalculator.com/discount-calculator" meta: "og:description": "Calculate the sale price and your savings from a percentage or fixed discount. Stack a second discount, add sales tax or find the original price from the sale price." "og:image": "https://methodcalculator.com/_og/s/o_88dd5068bf6a3b24.png" "og:image:height": "600" "og:image:type": image/png "og:image:width": "1200" "og:title": "Discount Calculator – Free Online Tool" "twitter:image": "https://methodcalculator.com/_og/s/o_88dd5068bf6a3b24.png" --- > Index of every page on this site: [llms.txt](https://methodcalculator.com/llms.txt) # **Discount Calculator** Enter a price and the discount to see the sale price and how much you save. Stack a second discount, add sales tax, work from a dollar amount off, or reverse a sale price to find what the item cost originally. ## **Result** Sale price **$60.00**
Original price
$80.00
You save
**$20.00**
Discount
25%
**$80.00 at common discounts** | **Discount** | **You save** | **Sale price** | | --- | --- | --- | | 5% off | $4.00 | $76.00 | | 10% off | $8.00 | $72.00 | | 15% off | $12.00 | $68.00 | | 20% off | $16.00 | $64.00 | | 25% off | $20.00 | $60.00 | | 30% off | $24.00 | $56.00 | | 40% off | $32.00 | $48.00 | | 50% off | $40.00 | $40.00 | | 60% off | $48.00 | $32.00 | | 70% off | $56.00 | $24.00 | | 75% off | $60.00 | $20.00 | ## What this discount calculator does A discount is a reduction from a listed price, usually quoted as a percentage ("25% off") or as a fixed amount ("$20 off"). The calculator turns either kind into the number you care about at the till: the price you pay and the amount you keep. It also handles the two situations where shoppers most often go wrong, a second coupon applied on top of a sale price and working backwards from a sale price to the original. ## Discount formula and worked example For a percentage discount: **Saving = price × discount ÷ 100** **Sale price = price − saving = price × (1 − discount ÷ 100)** **Example:** a jacket listed at $80 is 25% off. The saving is 80 × 0.25 = **$20**, so the sale price is 80 − 20 = **$60**. The same answer comes from 80 × 0.75 = 60. If your area charges 8% sales tax, it is added to the discounted price: 60 × 1.08 = $64.80. For a fixed amount off, the sale price is simply price − amount, and the discount as a percentage is amount ÷ price × 100. $20 off an $80 item is 20 ÷ 80 = 25%. ## Stacked discounts are not additive When a store offers "an extra 10% off sale prices", the 10% comes off the reduced price, not the original. Each discount multiplies what is left, so the combined reduction is smaller than the sum of the two numbers: **Final price = price × (1 − d₁) × (1 − d₂)** $100 at 20% off becomes $80; 10% off $80 is $8, leaving **$72**. The effective discount is 28%, not 30%. The order of the discounts makes no difference, and the gap grows with bigger percentages: | Stacked discounts | Sum | Real combined discount | | --- | --- | --- | | 20% + 10% | 30% | 28% | | 30% + 15% | 45% | 40.5% | | 25% + 25% | 50% | 43.75% | | 50% + 50% | 100% | 75% | ## Reverse discount: finding the original price To recover the price before a percentage discount, divide the sale price by what fraction of the original you paid: **Original price = sale price ÷ (1 − discount ÷ 100)** A $60 sale price at 25% off was originally 60 ÷ 0.75 = **$80**. Adding 25% back onto $60 gives $75, which is wrong, because the $20 saving was 25% of the larger original figure, not of the sale price. Use "Find the original price" mode for this, or the [percentage calculator](https://methodcalculator.com/percentage-calculator) for other reverse-percentage questions. ## How to use this calculator 1. Pick a mode: "Percent off" for a percentage sale, "Amount off" for a fixed-dollar coupon, or "Find the original price" when you only know the sale price. 2. Enter the price and the discount. In percent mode you can add a second discount for an extra coupon and a sales tax rate to see the amount you will pay at the register. 3. Read the sale price, the saving and, with tax, the total. The table below the result shows the same item at every common discount level. ## Common mistakes - **Adding stacked percentages.** 20% then 10% is 28% off, never 30%. Enter both in the calculator rather than summing them. - **Reversing a discount by adding the percentage back.** Divide by (1 − discount) instead; see the section above. - **Comparing a dollar discount to the wrong base.** $20 off is 25% of an $80 item but only 10% of a $200 item. Amount-off mode shows the real percentage. - **Forgetting tax.** Tax is normally charged on the discounted price. For the tax alone, see the [sales tax calculator](https://methodcalculator.com/sales-tax-calculator). - **Reading "up to 50% off" as 50% off.** The headline figure is the maximum reduction in the sale, not the typical one. - **Judging a deal by the discount alone.** Retailers can inflate the "original" price before marking it down. If you are the seller, the [margin calculator](https://methodcalculator.com/margin-calculator) shows what a discount does to your profit. ## **Frequently asked questions ** ### **How do I calculate 25% off a price?** Multiply the price by 0.25 to get the saving, then subtract it from the price. On $80 the saving is $20 and the sale price is $60. A faster route is to multiply the price by what you still pay: 100% − 25% = 75%, and $80 × 0.75 = $60. ### **Is 20% off plus an extra 10% off the same as 30% off?** No. The second discount is taken from the already-reduced price, not the original. $100 becomes $80 after 20% off, and 10% off $80 is $72, so you pay $72 rather than the $70 that a flat 30% would give. Two stacked discounts are always a little less generous than their sum. ### **How do I find the original price before a discount?** Divide the sale price by (1 − discount). A $60 item sold at 25% off was originally $60 ÷ 0.75 = $80. Adding 25% back onto $60 gives only $75, which is a common mistake because the percentage was taken from the larger original figure. ### **Is sales tax charged on the price before or after the discount?** In most places tax is charged on the amount you actually pay, so it applies after store discounts and coupons. Manufacturer coupons and rebates can be treated differently in some US states, where tax is calculated on the pre-coupon price. The calculator applies tax to the discounted price. ### **What does "up to 50% off" mean?** It means 50% is the largest discount in the sale, not the typical one. Most items in an "up to" promotion carry a much smaller reduction, so check the individual price tag and use the amount-off mode to see the real percentage you are getting. ## **Related calculators ** - [**Percentage Calculator**](https://methodcalculator.com/percentage-calculator) - [**Sales Tax Calculator**](https://methodcalculator.com/sales-tax-calculator) - [**Margin Calculator**](https://methodcalculator.com/margin-calculator) - [**Tip Calculator**](https://methodcalculator.com/tip-calculator) ```json {"@context":"https://schema.org","@graph":[{"@id":"https://methodcalculator.com/#website","@type":"WebSite","description":"Free online calculators for finance, health and fitness, math and everyday life. 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