See what a price change leaves after your costs.
Fictional worked example. These are illustrative inputs, not customer results.
Starting point
Fictional example — not a customer result: A fictional stationery shop supplies 36 products, packing costs and a percentage platform fee.
Illustrative delivery
Illustrative output: The workbook compares full price with two approved discounts and shows contribution per unit under each scenario without treating it as total business profit.
Illustrative working detail
| Input | Illustrative value |
|---|---|
| Unit cost | $12.00 |
| Selling price | $25.00 |
| Percentage selling fee | 3% |
| Fixed fee per unit | $0.30 |
| Contribution before omitted costs | $11.95 |
Illustrative calculation: $25.00 − $12.00 − ($25.00 × 3%) − $0.30 = $11.95, or 47.8% of selling price. This is not net profit: overhead, acquisition, refunds and any other omitted costs still matter.
What you receive
- Excel calculator with editable inputs and formulas
- assumptions and instructions sheets
- calculation check report
What we check
Recalculate all formulas; independently check full-price, discount, fixed-fee and zero-value cases; distinguish markup, margin and contribution; surface missing costs.
Your completed package uses your approved source material and agreed assumptions. This example is not a guarantee of business results.