Discount Percentage Calculator
Find out what percentage discount was applied by entering the original and final prices.
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USD
USD
Discount
25%
Total saved
$25.00
Discount percentage calculator. Find the exact percent off between two prices.
This calculator finds the exact percent off between an original price and a sale price, and tells you how much money you save. Enter both prices to compare deals or confirm that an advertised markdown is genuine.
What Is a Discount Percentage?
Percent off is the share of the original price you no longer pay. Take the price cut, divide it by the original price, and multiply by 100 — an item marked down from 100 to 80 dollars is 20% off, because the 20-dollar cut is a fifth of 100.
This calculator runs that math in one direction: you already know both prices and you want the rate. Type in the original price and the sale price, and it returns the exact percent off along with the amount saved. It does not go the other way — there is no field where you enter a percentage to get a final price — because the question shoppers hit most often is the reverse of applying a discount: the tag says "was 200, now 150" and you want to know how deep that really is (25% off, 50 dollars saved).
Stores lean on "was/now" pricing precisely because a raw pair of numbers is hard to read at a glance. Converting it to a percentage lets you line up one store's markdown against another's, confirm that an advertised "25% off" is genuine, and tell a token cut apart from a real one before you spend.
How to Use the Discount Percentage Calculator
The calculator takes two inputs and gives back two answers, updating live as you type — there is no submit button to press.
1. Enter the original price. This is the higher, pre-sale number: the list price, sticker price, or the "was" figure on the tag.
2. Enter the sale price. This is what you would actually pay at the register, the "now" figure.
3. Read the two results. The calculator shows the percent off and the amount saved, both rounded to two decimal places. For a coffee maker down from 129.99 to 89.99, that is 30.77% off and 40 dollars saved.
To sanity-check any result by hand, subtract the sale price from the original to get the savings, divide that by the original price, and multiply by 100. Working the coffee-maker example the long way: 129.99 minus 89.99 is 40, then 40 divided by 129.99 is about 0.3077, and times 100 gives 30.77%. The one step that trips people up is which price to divide by — always the original, never the sale price.
Percent-Off Formula
- = Original price — the higher, pre-sale "was" figure
- = Final price — the "now" figure you actually pay
The amount saved is just the gap between the two prices:
Divide that gap by the original price and multiply by 100 to turn it into a rate. Because the original price sits in the denominator, the same dollar saving is a bigger percentage on a cheap item than on an expensive one: 20 dollars off an 80-dollar jacket is 25% off, while 20 dollars off a 400-dollar coat is only 5%.
Note the direction. This formula solves for the rate when you already know both prices — the reverse of applying a discount. To go the other way and turn a known percentage into a sale price, the discount calculator rearranges the same relationship into final price equals original times (1 minus the rate).
Worked Percent-Off Examples
An $80 Jacket Marked Down to $60
A jacket listed at 80 dollars is on the rack for 60 dollars. Enter both and the calculator returns 25% off with 20 dollars saved, because the 20-dollar cut is a quarter of the 80-dollar starting price. This is the everyday case where a round "was/now" pair hides a clean percentage — useful when a rival store advertises "20% off" the same jacket and you want to see which markdown actually runs deeper.
A $250 Sofa Cut to $175
A sofa listed at 250 dollars is down to 175. The savings are 75 dollars, and 75 divided by 250 is 0.30, a flat 30% off. Thirty percent is the level many retailers treat as a headline sale — deep enough to move stock, round enough to put on a banner — so it is a handy benchmark when you are deciding whether to buy now or hold out for a steeper clearance cut later in the season.
A $129.99 Coffee Maker Now $89.99
A coffee maker drops from 129.99 to 89.99. The savings come to 40 dollars, and 40 divided by 129.99 is about 0.3077, so the calculator shows 30.77% off. Messy sticker prices almost never land on a round percentage, which is exactly why converting the pair to a rate beats eyeballing it: 30.77% off edges out a flat 30%, and only the math reveals that extra sliver.
A $1,200 Laptop on Sale for $899
A laptop with a 1,200-dollar list price is tagged at 899 dollars. That works out to 301 dollars saved and 25.08% off, since 301 divided by 1,200 is 0.2508. On a big-ticket item the dollar figure and the percentage tell different stories — 301 dollars is real money, yet the rate is an ordinary 25%, so it is worth checking the laptop's price history before calling it the deal of the year.
A $50 Shirt Reduced to $37.50
A shirt falls from 50 dollars to 37.50. The savings are 12.50, and 12.50 divided by 50 is 0.25, so it is a clean 25% off. Fractional sale prices like 37.50 still resolve to a round percentage here — the two decimal places in the savings do not mean the rate itself is messy.
A $19.99 Gadget Down to $14.99
A gadget priced at 19.99 is on offer for 14.99. You save 5 dollars, and 5 divided by 19.99 is 0.250125, which rounds to 25.01% off — not a flat 25%. This is the classic ".99" trap: a five-dollar cut on a 19.99 price looks like exactly a quarter off but lands just over it. That true 25.01% matters when you are lining up several near-identical deals side by side.
Percent Off for Common Price Pairs
| Original price | Sale price | Percent off | You save |
|---|---|---|---|
| $100 | $80 | 20% | $20 |
| $50 | $35 | 30% | $15 |
| $129.99 | $89.99 | 30.77% | $40 |
| $200 | $150 | 25% | $50 |
| $19.99 | $14.99 | 25.01% | $5 |
| $80 | $60 | 25% | $20 |
Discount Mistakes That Cost You Money
- Dividing by the sale price instead of the original. Percent off is always measured against the starting price. An item that falls from 100 to 80 dollars is 20% off (20 divided by 100), not 25% off (20 divided by 80). Dividing by the smaller number inflates the discount and is the single most common error.
- Reading "20% off" as "pay 20%." Twenty percent off a 100-dollar item means you knock off 20 dollars and pay 80 — not that you pay 20. If a price looks too good to be true, you have probably swapped the share you keep with the share you save.
- Adding stacked discounts together. A 20%-off coupon on top of a 10% storewide sale is not 30% off. The second cut applies to the already-reduced price, so a 100-dollar item drops to 80, then to 72 — an effective 28% off, not 30%.
- Assuming "50% off, then 50% off" makes it free. Half of a 100-dollar item is 50, and half again is 25. You still pay 25 dollars, which is 75% off in total, not 100%. Repeated halving never reaches zero.
- Forgetting that tax comes after the discount. The percent off applies to the pre-tax price. A 20%-off item at 80 dollars still has sales tax added at the register, so the amount you actually hand over is higher than the sale price the calculator works from.
Frequently Asked Questions About Discount Percentage
How do I find what percent off something is?
Subtract the sale price from the original price, divide by the original price, and multiply by 100. An item that drops from 100 to 80 dollars is 20% off, saving 20 dollars — a fifth of the starting price.
What percent off is 150 from 200?
That is 25% off. Subtract 150 from 200 to get 50 saved, divide 50 by 200, and multiply by 100. You keep 50 dollars, a quarter of the original price.
Should I divide by the original price or the sale price?
Always divide by the original price. Percent off measures how far the price fell from where it started, so the original is the base. Dividing by the sale price instead gives you the markup needed to climb back up, which is a different, larger number — a drop from 200 to 150 dollars is 25% off, but climbing from 150 back to 200 is a 33.3% increase.
Is 20% off a good deal?
It depends on the category. For electronics, where margins are thin, 20% off is a solid cut. For clothing it is routine mid-season but modest next to end-of-season clearance, which often runs 40% to 70% off. As a rough guide: under 15% is minor, 20% to 30% is worth acting on, and above 40% is a genuine bargain.
Does a 20% coupon on top of a 10% sale equal 30% off?
No. Stacked discounts multiply rather than add, because each one applies to the price left after the previous cut. On a 100-dollar item, 20% off leaves 80, then 10% off leaves 72 — an effective 28% off, not 30%.
If something is 50% off twice, is it free?
No. Each 50% cut halves whatever price is left, so it never reaches zero. A 100-dollar item becomes 50 after the first cut and 25 after the second — you still pay 25 dollars, a total of 75% off.
How do I work out the sale price when I only know the percent off?
This calculator does not do that step, but the math is quick by hand. Multiply the original price by the percent off written as a decimal to get the savings, then subtract it. For 30% off a 50-dollar item: 50 times 0.30 is 15 off, so the sale price is 35 dollars.
What's the difference between this and a regular discount calculator?
This one works in reverse: you give it two prices and it returns the percent off. A regular discount calculator does the opposite — you give it a price and a percentage, and it applies the cut to show the sale price. Use this tool when the tag already reads "was/now"; reach for the discount calculator when you know the percentage and need the final price.
How do I calculate percent off in Excel or Google Sheets?
Put the original price in cell A1 and the sale price in B1, then use =(A1-B1)/A1 and format the cell as a percentage. With 129.99 in A1 and 89.99 in B1, the formula returns 0.3077, which displays as 30.77%.
How accurate are the results, and how are they rounded?
The calculator uses the standard percent-off formula and rounds both results to two decimal places, so an item down from 19.99 to 14.99 dollars shows as 25.01% off with 5 dollars saved. Prices that divide evenly, like 200 to 150 dollars, come out to a clean 25% with no extra digits.
Is this discount percentage calculator free to use?
Yes, it runs in any web browser on a phone, tablet, or computer, with nothing to install and no limit on how many prices you check. The percent off and amount saved appear the moment you enter the second price.