Bundle Discount Profit Protector
“Buy 2, get 1 free” and bundle promotions are easy to set up and surprisingly easy to get wrong - a generous-looking discount on a bundle can quietly erase most or all of the margin on the products inside it. This calculator lets you add every product in a bundle with its cost and regular price, apply a bundle-wide discount, and set a minimum acceptable margin. It then shows the real combined cost, bundle price, resulting profit and margin, and flags clearly whether the promotion holds up - plus the maximum discount you could offer before crossing your own floor.
Add the products in a bundle, test a discount, and see the exact point where the promotion turns unprofitable.
Frequently Asked Questions
How do you calculate margin on a bundled product?
Add up the cost and regular price of every product in the bundle, apply the bundle discount to the combined regular price, then calculate margin as (bundle price - combined cost) / bundle price, expressed as a percentage.
Why does a “15% off” bundle sometimes lose more margin than expected?
Because the discount applies to the full combined price, and margin is a percentage of a now-smaller number. A bundle with already-thin margins on individual items can slip below breakeven at a discount percentage that looks modest on paper.
What’s a reasonable minimum margin for a bundle promotion?
It depends entirely on your business and fixed costs, but many sellers set a floor somewhere between 20-35% to ensure a promotion still contributes to overhead after direct costs. Set your own floor in the calculator to check against it directly.
All tools are provided for estimation purposes only and do not constitute financial, legal, or compensation advice. Always confirm figures against your company's official comp plan and pricing policy.
sales math, done in the browser.