Percentage Off Calculator
And the volume it needs to break even.
Discounted price
$46.40
$11.60 off
A 20% discount on a 44% margin needs 83% more units to hold contribution, not 20% more. That gap is why discounts are planned against the percentage and judged against revenue.
How the Percentage Off Calculator works
A 20% discount on a 44% margin needs 83% more units to hold contribution, not 20% more. That gap between how a discount reads and what it does is why promotions are planned against the percentage and judged against revenue.
Also known as: what is 30 percent off · percent discount calculator · how much off is that
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price, check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How do I calculate a percentage discount?
Multiply the price by the discount percentage to get the saving, then subtract. The harder question is what volume increase the discount requires to be worth doing.
How much extra volume does a discount need?
Margin divided by (margin minus discount). At 44% margin a 20% discount needs 1.83 times the units; at 25% margin the same discount needs 5 times.
Why does margin matter so much?
Because the discount comes entirely out of contribution. A thin margin means the discount consumes a large share of what each sale earns, so far more sales are needed to replace it.
When is a discount clearly worth it?
When it clears stock you would otherwise write off, when it acquires a customer who will buy again, or when the volume genuinely arrives. Discounting to existing customers who would have paid full price is a straight transfer.