# Discount Break-Even Calculator

URL: https://www.paydude.io/resources/tools/discount-break-even-calculator
Type: Free interactive calculator
Summary: A 25% discount needs 33% more sales just to match your current revenue — and more than that to match profit. Work out the hurdle before you run the promotion.

Discounts are usually judged on how many extra sales they produced. The right question is how many they needed to produce — a hurdle that rises much faster than the discount itself.

## Summary

A 25% discount needs 33% more sales to match revenue, not 25%. Matching profit takes more uplift still, because the discount comes out of margin. The hurdle accelerates: 50% off requires double the sales. Customers who would have paid full price make the real hurdle higher than any model shows.

## Why the hurdle exceeds the discount

Cut the price 25% and you keep 75% of the revenue per sale. To get back to where you were, you need 1 ÷ 0.75 = 1.333 times the sales — a 33% increase, not 25%.

**Extra sales needed just to match current revenue**

| Discount | You keep | Sales uplift needed |
| --- | --- | --- |
| 10% | 90% | +11% |
| 20% | 80% | +25% |
| 25% | 75% | +33% |
| 33% | 67% | +50% |
| 50% | 50% | +100% |

## Profit is the harder test

Revenue break-even understates the problem, because a discount comes entirely out of gross profit. Your costs to serve each customer do not fall just because the price did.

At an 80% gross margin, a $49 product contributes $39.20. Discount it 25% to $36.75 and the contribution drops to $26.95 — a 31% fall in profit per sale from a 25% cut in price. Matching profit needs 45% more sales, not 33%.

> **The cost nobody models:** Some share of discount buyers would have paid full price. Every one of those is pure margin lost with no offsetting volume, which pushes the real hurdle above anything this calculator shows.

## When a discount is still the right call

- **Clearing a specific barrier**, such as a launch with no reviews or social proof yet
- **Annual prepayment**, where you are buying cash and retention rather than volume
- **A genuinely time-boxed window**, which creates urgency instead of resetting expectations
- **Reaching a segment that truly cannot pay full price**, ideally gated so your main market cannot use it

What rarely works is a recurring sitewide discount. It trains customers to wait, and the hurdle has to be cleared every single time.

**Protect the margin you have** Payment fees are one of the few costs you can lower without touching your price. — [See Paydude pricing](https://www.paydude.io/pricing)

## Frequently asked questions

### Why does a 25% discount need 33% more sales?

Because the two percentages are measured against different bases. Cutting 25% leaves you 75% of the revenue per sale, and getting back to 100% requires 1 ÷ 0.75 = 1.333 times the volume. The deeper the discount, the wider the gap: 50% off needs double the sales.

### Should I use revenue or profit break-even?

Profit. A discount comes out of gross margin, so profit per sale falls faster than price does. Revenue break-even is the friendlier number and the one most promotions are wrongly judged against.

### Do discounts hurt beyond the promotion period?

Frequently. Regular discounting teaches customers to wait for the next one, which depresses full-price sales between promotions. Time-boxed, infrequent, or segment-gated offers avoid most of that.

### Is a free trial better than a discount?

Usually, for SaaS. A trial removes risk without touching the price you eventually charge, so it does not reset the customer's reference point. A discount lowers what they believe the product is worth.