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Discount Profit Calculator

Check whether a sale or coupon still leaves profit once fees and costs are taken out of the discounted price.

Enter every amount in the same currency. This selector only changes the symbol shown — it does not convert exchange rates.

Profit after discount

$7.30

High Profit Potential

Discounted price

$24.00

Saves buyer $6.00

Margin after discount

30.4%

Total fees

$2.70

This discount still leaves healthy profit.

Short example

A $30.00 product at 20% off sells for $24.00. After $8.00 product, $1.00 packaging, $5.00 shipping, $2.70 fees, profit ≈ $7.30 (~30.4% margin).

All calculations are estimates based on average platform fees. Real profits may vary depending on category, ads, and shipping.

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How to use this calculator

  1. Enter your numbers in each field above — the calculator updates instantly as you type, so there's nothing to submit.
  2. Use your real figures when you have them, or sensible estimates while you're planning. If a field doesn't apply, leave it at zero.
  3. Compare the results, then change one input at a time to see how each lever (price, cost, fees, volume) moves the outcome.

When to use this calculator

  • Before running a sale, so you know whether the discount still leaves enough profit.
  • When a marketplace pushes you to join a coupon or sale event.
  • Before stacking a coupon on top of an already-reduced price.
  • When choosing between a percentage discount and a smaller free-shipping offer.

Formula

Discounted price = Price × (1 − Discount%) · Profit = Discounted price − Cost − Packaging − Shipping − (Discounted price × Fee% + Fixed fee)

Worked example

$30 price, 20% off, $8 cost, $1 packaging, $5 shipping, 10% fee, $0.30 fixed.

  1. Discounted price = $24
  2. Fees = 24 × 10% + 0.30 = $2.70
  3. Profit = 24 − 8 − 1 − 5 − 2.70 = $7.30

Answer: ≈ $7.30 profit (30% margin)

How it works

A 20% discount doesn't cut profit by 20% — it cuts it by more, because your fixed costs don't shrink. Running the number before a sale prevents deep discounts that quietly bleed money.

Expert tips

  • Test the deepest discount you're considering first — if that one loses money, cap the sale before you launch it.
  • On low-priced items the fixed fee dominates. Discount your higher-priced products instead.
  • Set a margin floor (many sellers use 15%) and let it decide the maximum discount for you.
  • If the sale needs to hit a revenue target, check how many extra orders it takes to match your normal-price profit.

How to interpret your results

  • Dollar values are shown per sale, per order, or per item unless a result is explicitly labelled monthly, weekly, or daily.
  • Percentages (margin, ROI, conversion rate) are easier to compare across products and price points than raw dollars — use them when you benchmark.
  • A positive result means you're ahead after the costs and fees you entered. A negative result means the current numbers don't work — change a lever (raise price, cut a cost, lower ad spend) and recalculate.
  • Treat the output as a planning estimate, not a guarantee. Fees, taxes, and conversion rates shift over time — re-run the numbers whenever a key input changes.

Common mistakes

  • Forgetting fees are charged on the discounted price, not the original.
  • Ignoring the fixed fee — it hurts most when the price drops.
  • Stacking discounts without re-checking the profit each time.

Related Guides

Go deeper with plain-English guides on the same topic.

FAQ

What's a safe discount?
Anything that keeps margin above ~15% is generally healthy. Under 10% and one refund can wipe out the sale.
How is this different from Discount Profit Check?
This one is the simpler universal version. Discount Profit Check adds break-even discount and target-margin analysis.
What numbers do I need?
Your regular sale price, the discount or coupon percentage, product cost, packaging, shipping you pay, and your fee percentage plus fixed fee.
Why can a sale raise revenue but lower profit?
A discount cuts the money coming in, but product cost, packaging, postage, and the fixed fee stay the same. More orders at a thinner margin can mean more work for less profit.
Are fees charged on the discounted price?
Yes — the percentage fee applies to what the customer actually pays. The fixed per-order fee doesn't shrink at all, which is why deep discounts hurt small-ticket items most.
What does the result mean?
Profit after discount is what one discounted order leaves you. If it's negative, the sale costs you money on every order, no matter how many you sell.

Why trust this calculator?

This tool uses standard mathematical formulas and commonly accepted calculation methods, shown openly in the Formula section above so you can verify the math yourself. Results are estimates based on the information you enter and do not account for every individual circumstance. For important financial, tax, legal, medical, or business decisions, please double-check with a qualified professional before acting on the numbers.

What to calculate next

Use this before running a sale so you know whether the discount still leaves enough profit. Next, compare the full offer, see what a price change would do instead, and confirm the month still works after all costs.

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