Unit Economics
Bundle Economics Calculator
Whether a bundle discount grows profit or just gives margin away — the math behind "3 for the price of 2.5".
Inputs
- Average item price
- Items per bundle
- Bundle discount
- Per-item margin
How to use this calculator
- Enter the standalone prices of the items in the bundle and the discount you'll offer together.
- Add the attach rate, meaning how often the bundle sells versus the single item, and the per-item margin.
- The result shows whether the bundle grows total profit or just discounts what would have sold anyway.
What each term means
- Bundle discount
- The percentage knocked off for buying items together.
- Attach rate
- How often buyers add the extra item(s) rather than buying just one.
- Blended margin
- The combined margin across the bundled items after the discount.
Educational disclaimer: Outputs are simplified educational estimates built from the numbers you enter — they are not financial, legal, tax, or investment advice, and real decisions deserve verified figures and qualified professionals.