Instant
The final price updates as you type, no buttons needed.
Free tool
Discount calculator
Running promotions and not sure at the end of the month whether you made or lost money? Calculate the final price and how much you really keep after the discount.
Fast. Simple. Accurate. And best of all, free.
- No sign-up
- Your data never leaves your browser
Instructions
Enter the sale price and the discount as a percentage or an amount. If you want to know how much you make, turn on advanced settings and enter the cost.
Calculator results
Discount amount--
Margin with the discount--Enter the cost to see it
Final price--
Percentage or pesos
Discount however you like and see the equivalent.
Warns you if you lose money
With the cost, it tells you if the promotion puts you in the red.
How do you calculate a discount, and what does it really cost you?
Calculating a discount is easy: 20 % off $50.000 is $10.000, and the customer pays $40.000. What few people calculate is how much of their profit went into that markdown.
When you know what each discount costs you, you can choose how much to take off and when to stop.
It comes out of your profit
If the product costs you $30.000, you were making $20.000; with 20 % off, you make $10.000. You need to sell twice as much just to break even.
Promotions as percentages
A 2-for-1 is 50 % off, and “buy 3, pay for 2” is 33 %. 20 % plus an extra 10 % comes to 28 %, not 30 %.
Final price=Sale price × (1 − Discount %)
Tiendana Enseña tip
Discount with a goal, not out of habit
Before launching a promotion, decide what it's for: moving slow stock, attracting new customers on a special date or launching a product. Give it a start and end date, and when it ends, compare how many units you sold and how much you made against a normal week. If you can't measure it, you don't know if it worked.
If you're always on sale, your customers get used to waiting for the discount and stop buying at full price. Instead of marking down your star products, try bundles, a low-cost freebie or a 2-for-1 on high-margin products: the customer feels like they're winning, and you protect your price.
Did you know?
If a product gives you a 30 % margin, a discount of just 10 % forces you to sell 50 % more units to make the same as before.
Step by step
How to calculate a discount and the margin you keep
Enter the price
Enter the product's regular price, before any discount.
Choose the discount
Choose whether you discount by percentage or in pesos, and enter the value.
Add the cost
It's optional: with the cost, you see the profit and margin you keep with the promotion.
Check the result
See the final price and, if the discount makes you lose money, an alert with the maximum discount the product can handle.
We answer your questions
Frequently asked questions
How do you calculate the discount percentage on a product?
Multiply the price by the percentage and divide by 100. 15 % off $80.000 is $80.000 × 15 / 100 = $12.000 off, and the final price comes to $68.000.
How do I find the percentage if I already know how many pesos I'll take off?
Divide the discount by the price and multiply by 100. Taking $6.000 off a $40.000 product is a 15 % discount: 6.000 / 40.000 × 100.
How do I calculate the original price if I only know the discounted price?
Divide the final price by 1 minus the discount. If a product ended up at $68.000 with 15 % off, the original price was $68.000 / 0,85 = $80.000.
How much of a discount can I give without losing money?
At most, the profit the product leaves you. If it costs you $30.000 and you sell it for $50.000, you can take off up to $20.000 (40 %) and break even; any more than that, and you lose money on every sale.
How many more units do I need to sell to make up for a discount?
Divide the profit per unit without the discount by the profit with the discount. If you were making $20.000 and with the promotion you make $10.000, you need to sell twice as many units to make the same.
Is 20 % off and then another 10 % the same as 30 %?
No. The second discount applies to the already reduced price, so together they equal 28 %. On a $100.000 product, the customer pays $72.000, not $70.000.
Which is better: advertising the discount as a percentage or in pesos?
It depends on the product's price. On cheap products, the percentage feels bigger; on expensive products, the peso amount is more impressive. Try both and measure which one sells more.
What is a loss leader?
It's a product you sell with very little margin, or even at a loss, to attract customers who end up buying other products that do make you money. It works if you limit the units and the length of the promotion.
Does running discounts all the time hurt my business?
Yes. If you're always on sale, your customers get used to waiting for the discount, stop buying at full price and may start seeing your product as less valuable. Use discounts with a goal and an end date.
Does the discount calculator save my prices?
No. The calculation happens in your browser, and the prices and costs you enter aren't sent to any server.
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