How do I figure out what something cost before it went on sale
How do I figure out what something cost before it went on sale? Use the reverse-discount formula: Original price = sale price ÷ (1 − discount ÷ 100). Three steps: (1) turn the discount into the share you paid — 20% off means you paid 0.80; (2) divide the sale price by that number; (3) round to two decimals. Example: a jacket at $72 after 20% off: $72 ÷ 0.80 = $90, so it cost $90 before the sale. The common mistake is adding the discount percent back on ($72 + 20% = $86.40) — that undervalues the original price. Try it above.
How to Find the Original Price Before a Discount
No mental math at the checkout. This free discount calculator works for clothes, electronics, groceries, subscriptions, and any other percentage-off offer.
- Enter the original priceUse the price before any discount is applied.
- Add the percentage offType any value from 0% to 100%, or tap a quick option.
- See the result instantlyCompare the final price with the amount you save.
Discount calculator with no download
This discount calculator runs entirely in your browser — no app to install, no account to create, no signup form. Enter the original price, type the discount percentage (or tap a quick chip), and the sale price and your savings appear instantly. Free forever, on any phone or computer. Updated October 2026.
Frequently asked questions
How do I figure out what something cost before it went on sale with a calculator?
How do I figure out what something cost before it went on sale with a calculator? How do I figure out what something cost before it went on sale with a calculator? Use the reverse formula: divide the sale price by (1 − discount ÷ 100) — for example, $72 at 20% off: $72 ÷ 0.80 = $90. The free discount calculator above runs the forward math instantly: enter the original price and the % off to see the sale price and your savings.
How do I figure out what something cost before it went on sale by hand?
How do I figure out what something cost before it went on sale by hand? Divide the sale price by (1 − discount ÷ 100). A $72 item after 20% off: 20 ÷ 100 = 0.20, 1 − 0.20 = 0.80, $72 ÷ 0.80 = $90 original price.
How do I calculate a discounted price?
Multiply the original price by the discount percentage, divide by 100, then subtract that discount amount from the original price. For example, 25% off $80 saves $20, so the final price is $60.
How much is 20% off?
A 20% discount means you save 20 for every 100 of the original price. You pay the remaining 80%. On a $50 item, that is a $10 saving and a $40 final price.
Does the result include tax?
No. The result is the price after the discount but before tax, delivery fees, or other charges. Apply those separately if needed.
How do I find the original price before a discount?
To find the original price before a discount, divide the sale price by (1 − discount ÷ 100). For example, an $80 sale price after 20% off means the original price was $80 ÷ 0.80 = $100. Enter both numbers above and this calculator finds the original price before the discount instantly.
What is the formula for finding the original price before a discount?
The formula for finding the original price before a discount is: Original Price = Sale Price ÷ (1 − Discount Rate). With a 25% discount, divide the sale price by 0.75; with 30% off, divide by 0.70.
What is 20% off $100?
You save $20 and pay $80. For any price: savings = price × discount ÷ 100, and sale price = price − savings. Enter the original price and % off above — this free discount calculator shows both instantly, no download or signup.
How do stacked discounts work — is 20% plus 10% equal to 30% off?
No — they multiply: 20% off, then 10% off the reduced price, equals 1 − (0.80 × 0.90) = 28% total. Retailers count on shoppers adding the percentages; the second discount always applies to the smaller amount, so the real saving is less than the sum.
How do I calculate the discount percentage from two prices?
Discount % = (original − sale) ÷ original × 100. A jacket marked $80 selling for $64: (80 − 64) ÷ 80 = 0.20, i.e. 20% off. Always divide by the original price, never the sale price.
Should a coupon be applied before or after the store discount?
Mathematically it barely matters — multiplication is commutative, so the order changes the result only in rounding edge cases. In practice, fixed-amount coupons are usually applied last; just use whichever order the register accepts.