Calculator Input Form
Example Data Table
| Scenario | Qty | Item Price | Shipping Charged | Final Value Fee % | Promoted % | Cost Per Unit |
|---|---|---|---|---|---|---|
| Low-cost accessory | 1 | $18.00 | $4.99 | 13.25% | 4.00% | $6.50 |
| Mid-range electronics item | 1 | $129.00 | $9.50 | 13.25% | 6.50% | $72.00 |
| Multi-quantity consumable bundle | 3 | $24.00 | $7.95 | 12.90% | 3.00% | $9.25 |
Formula Used
Merchandise Revenue = Quantity × Item Price Per Unit
Seller-Collected Revenue = Merchandise Revenue + Shipping Charged + Handling Charged
Buyer Total = Seller-Collected Revenue + Sales Tax Collected
Final Value Fee = Final Value Fee Base × Final Value Fee Rate
Final Value Fee Base = Seller-Collected Revenue + Sales Tax Collected, if tax is included
Promoted Listing Fee = Seller-Collected Revenue × Promoted Listing Rate
Payment Fee = (Payment Fee Base × Payment Fee Rate) + Fixed Payment Fee
International Fee = Buyer Total × International Fee Rate
Platform Fees Total = Insertion Fee + Final Value Fee + Promoted Listing Fee + Payment Fee + International Fee + Store Allocation + Fixed Ad Cost
Operational Costs = Cost Of Goods + Actual Shipping + Packaging + Insurance + Refund Reserve + Other Costs
Net Proceeds Before Product Costs = Seller-Collected Revenue − Platform Fees Total
Net Profit = Seller-Collected Revenue − Platform Fees Total − Operational Costs
Profit Margin % = (Net Profit ÷ Seller-Collected Revenue) × 100
Required Item Price is solved from the same equation using your target profit input.
How To Use This Calculator
- Enter quantity and selling price per unit.
- Add shipping and handling charged to the buyer.
- Enter any sales tax collected for the order.
- Fill in your actual product, shipping, packaging, and insurance costs.
- Set your insertion, final value, promoted listing, and optional payment fees.
- Allocate store subscription or fixed advertising costs if needed.
- Choose whether tax belongs inside the fee bases.
- Enter a target profit to estimate the needed item price.
- Press Calculate Fees to show the result above the form.
- Use the CSV and PDF buttons to export the results.
Frequently Asked Questions
1. Does this calculator use official marketplace fee rates?
No. It uses the values you enter. Fee rates vary by category, plan, region, and ad settings, so update every input to match your actual statement.
2. Why are there separate product costs and platform fees?
Platform fees measure selling charges. Product costs measure inventory and fulfillment expenses. Separating them helps you see payout, true profit, and where margin gets lost.
3. Should sales tax be included in fee calculations?
That depends on how your statement is structured. The calculator gives you both options through checkboxes, so you can mirror the fee base used in your reports.
4. What is the difference between payout and profit?
Payout before product costs removes platform deductions only. Profit goes further by subtracting inventory, shipping, packaging, insurance, refunds, and any extra operating costs.
5. Can I model promoted listings and advertising?
Yes. Use the promoted listing percentage for ad-attributed order fees. Use fixed ad cost when you want to allocate a manual campaign amount per order.
6. What does the required item price result mean?
It estimates the per-unit selling price needed to hit your chosen target profit, while keeping the other entered fees and costs unchanged.
7. Can this handle multi-quantity orders?
Yes. Quantity scales merchandise revenue and unit cost automatically. Shipping, handling, and other order-level costs stay fixed unless you change them.
8. Can I export my results for reporting?
Yes. After calculating, use the CSV button for spreadsheet work and the PDF button for a portable summary you can save or share.