Free tool for sales & offers
Discount & Offer Calculator
Calculate the price after a discount, the % off between two prices, or the real discount of “buy X get Y” offers — and see the impact on your margin before you launch.
- Sale price
- Buy X get Y offers
- Margin impact
Result
Enter the prices to see the result.
Developed by Ahmed Elshamy All free tools
How it works
Three simple steps
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Choose the offer type
A % discount, two prices to compare, or a “buy X get Y” offer.
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Enter the prices
Add the unit cost to see the effect on your profit.
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Compare before deciding
Final price, customer savings, profit before and after, and the sales needed to break even.
Why check a discount’s impact on profit?
A 20% discount doesn’t cut your profit by just 20%. With a 40% margin, a 20% discount removes about half your profit — and you need to sell twice as many units to earn the same total.
And “buy 2 get 1 free” is a real 33.3% discount across the three items, not 50% as many assume. This tool works it out precisely so you can pick the offer that fits your margin.
FAQ
Good to know
How do I calculate a sale price?
Multiply the price by (1 − discount). Example: 250 with 20% off = 250 × 0.8 = 200, saving 50.
How do I find the discount between two prices?
Subtract the new price from the old one, divide by the old price and multiply by 100. Example: 300 → 225 = 75 ÷ 300 = 25%.
What discount is “buy 2 get 1 free”?
The customer takes 3 items and pays for 2 — a 1 ÷ 3 = 33.3% discount per item. “Buy 1 get 1 free” equals 50% off.
How many more sales do I need to cover a discount?
Divide profit per unit before the discount by profit after it. If profit drops from 40 to 20, you need to sell twice as many units (+100%) to earn the same total.
Does it include VAT?
All prices are treated on the same basis. Enter them all including VAT or all excluding it so the comparison stays correct.