Promotion economics, simplified
Know what your promotion will do before it goes live.
Model promotional mechanics, forecast revenue and gross profit impact, compare scenarios and calculate supplier funding — before committing to a promotion.
Free to use · No account required
Stop guessing. See the numbers first.
Revenue impact
See how a promotion changes expected revenue based on price, mechanic and volume uplift.
Gross profit impact
Understand the effect on gross profit before the promotion goes live.
Break-even
See how much additional volume is required to compensate for the promotional mechanic.
Supplier funding
Calculate how much supplier support is needed to close a GP gap.
Model the promotions you actually run.
Two offers can look almost identical to a customer and still produce very different revenue, margin and volume economics. PromoGauge calculates each mechanic the way it actually works at the till.
- Promotional price
- Percentage discount
- Buy 1 Get 1 Free
- Buy 2 Get 1 Free
- Buy 2 Get 2 Free
- Second item 50% off
- X items for Y price
How it works
From promotion idea to commercial impact in minutes.
- 01
Enter product economics
Add cost, retail price, VAT and optional supplier funding.
- 02
Choose the promotion
Select the mechanic and promotional conditions.
- 03
Add volume assumptions
Enter regular volume and expected promotional uplift.
- 04
See the impact
PromoGauge calculates expected revenue, gross profit, margin and break-even.
- 05
Compare and export
Compare multiple scenarios, save calculations and export a PDF summary.
Compare options side by side before you decide.
Set up to three promotion scenarios and see the same metrics for each one in a single view.
| Metric | Scenario A | Scenario B | Scenario C |
|---|---|---|---|
| Revenue impact | |||
| GP impact | |||
| Effective discount | |||
| Break-even uplift | |||
| Supplier funding |
Built for anyone who needs to know whether a promotion makes commercial sense.
Retail & category teams
Evaluate promotional mechanics before committing to an event.
E-commerce businesses
Test discounts, bundles and multi-buy offers before launching them.
Brands & suppliers
Understand promotional economics and supplier funding requirements.
Small businesses
Replace spreadsheet guesswork with a structured promotion calculation.
Frequently asked questions
Is PromoGauge free?+
Yes. PromoGauge is currently free to use.
Do I need an account?+
No. You can use the calculator without creating an account.
What promotion types can I calculate?+
PromoGauge currently supports promotional prices, percentage discounts, Buy 1 Get 1 Free, Buy 2 Get 1 Free, Buy 2 Get 2 Free, second item 50% off and X items for Y price.
Does supplier funding count as revenue?+
No. Supplier funding affects promotion economics and gross profit calculations but is not included in customer revenue.
Can I compare different promotion scenarios?+
Yes. Multiple promotion scenarios can be created and compared side by side.
Can I export my calculation?+
Yes. Calculations can be exported as a PDF summary.
Run the numbers before you run the promotion.
See the revenue, gross profit and break-even impact of your next promotion in minutes.
Open PromoGauge