Discount Calculator
See your sale price, what a discount does to your profit, and how many more sales you need just to earn the same profit as before.
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Your numbers
$
$
Product, fees and shipping
%
Results
Extra sales needed to keep your profit
+100%
Sell 2× as many units to earn the same total profit.
- Sale price
- $30.00
- Profit per unit before
- $20.00
- Profit per unit after
- $10.00
- Margin after discount
- 33.33%
- Discount per unit
- $10.00
Download your results
Branded KleverKlimb report with your inputs and results.
How it works
The formula
Exactly what this calculator does with your numbers — no hidden assumptions.
01local_offer
Sale price
Sale price = price × (1 − discount). 25% off $40 is $30.
02trending_down
Profit hit
The discount comes straight out of profit. A 25% discount on a 50% margin product halves your profit per unit.
03trending_up
Sales needed
Extra sales needed = profit before ÷ profit after − 1. Halving profit per unit means you must sell twice as many.
FAQ
Questions, answered
Q1Why does a small discount need so many extra sales?
Because the discount comes out of your profit, not your price. On thin margins, even 10–20% off can wipe out most of the profit per unit.
Q2When is a discount still worth it?
When it brings in new customers who buy again, clears slow stock, or wins visibility you’ll keep after the sale. Use the CAC & LTV calculator to judge repeat value.
Q3What should “cost per unit” include?
Everything that scales with each sale: product, marketplace and payment fees, packaging and shipping you pay. Fees that are a percentage of price fall with the discount, so recalculate them for big discounts.
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