Act on the result
Use the required listing price as the listing floor, then decide whether to reprice, reduce an order cost or reject the marketplace offer.
Educational only: Business decision support, not accounting, tax or legal advice.
Privacy: No account is required. Tool inputs and results stay in this browser. Anonymous categorical usage analytics send only governed page, tool, cluster and action identifiers; tool inputs and results are never sent. Error monitoring is disabled. Optional saved state stays only on this device.
Update policy: Reviewed when formulas or official dependencies change.
Scope: Market-neutral small-business planning using your own assumptions.
What this planner helps you decide
Best for
Marketplace sellers testing whether a listing price survives the complete fee and fulfilment stack.
Outputs
Required listing price, fee per order, retained contribution and retained margin.
Start here
Copy the current rates and fixed charges from your own marketplace and payment contracts.
Use a different tool when: Do not use this to test order contribution after the full fee stack; use Ecommerce Order Profitability Planner for that decision. Use this tool to set a viable listing price after marketplace, payment and fulfilment fees.
Commerce & operations
Marketplace Fee Profit: required listing price
Required listing price, fee per order, retained contribution and retained margin.
Amounts use the same currency as your inputs. No currency conversion is performed.
Marketplace Fee Profit
Set a viable listing price after marketplace, payment and fulfilment fees. The starting numbers are illustrative only—replace every fee and rate with the current terms in your own provider contract.
Your numbers stay in this browser
Current or proposed listing price. Enter the amount on one consistent ex-tax market-currency basis.
Product cost per order. Enter the amount on one consistent ex-tax market-currency basis.
Pick, pack and handling per order. Enter the amount on one consistent ex-tax market-currency basis.
Seller-funded shipping per order. Enter the amount on one consistent ex-tax market-currency basis.
Your entered marketplace fee; no provider default is assumed.
Your entered payment fee.
Fixed marketplace or payment charge. Enter the amount on one consistent ex-tax market-currency basis.
Contribution retained from listing price.
Expected orders in the comparison period.
Decision result
Each output is bound to its registered ecommerce engine formula.
- Required listing price
- 85.38
- Fee Per Order Ex Tax
- 15.50
- Contribution Per Order Ex Tax
- 29.50
- Period Contribution Ex Tax
- 14,750.00
- Retained Margin Rate
- 29.5%
Scenario comparison
Each row names the assumption axis changed from the baseline.
ScenarioResultDifference
Current scenario85.38Baseline
Lower Marketplace fee rate84.09-1.29
Higher Marketplace fee rate86.721.33
Save these results, change an input, then compare the updated figures with this baseline.
The baseline is temporary in this tab and is not added to shared scenario links or generated reports.
Calculation details
View calculation detailsView the formulas and inputs used for these results.
Required listing price
Required Listing Price Ex Tax
cost stack / (1 − marketplace fee − payment fee − target margin)85.38Result85.38
Reports money for the entered planning period using the declared ex-tax cost and revenue basis. The engine retains full precision; presentation rounding does not feed calculation.
Marketplace Fee Profit Planner formulas →Inputs used by these formula steps
- Required Listing Price Ex TaxListing Price Ex Tax
- 100
- Required Listing Price Ex TaxProduct Cost Ex Tax
- 40
- Required Listing Price Ex TaxFulfilment Cost Ex Tax
- 8
- Required Listing Price Ex TaxShipping Cost Ex Tax
- 7
- Required Listing Price Ex TaxMarketplace Fee Rate
- 0.12
- Required Listing Price Ex TaxPayment Fee Rate
- 0.03
- Required Listing Price Ex TaxFixed Fee Per Order Ex Tax
- 0.5
- Required Listing Price Ex TaxTarget Margin Rate
- 0.2
- Required Listing Price Ex TaxOrders
- 500
Fee Per Order Ex Tax
Fee Per Order Ex Tax
listing price × combined fee rate + fixed fee15.50Result15.50
Reports money for the entered planning period using the declared ex-tax cost and revenue basis. The engine retains full precision; presentation rounding does not feed calculation.
Marketplace Fee Profit Planner formulas →Inputs used by these formula steps
- Fee Per Order Ex TaxListing Price Ex Tax
- 100
- Fee Per Order Ex TaxProduct Cost Ex Tax
- 40
- Fee Per Order Ex TaxFulfilment Cost Ex Tax
- 8
- Fee Per Order Ex TaxShipping Cost Ex Tax
- 7
- Fee Per Order Ex TaxMarketplace Fee Rate
- 0.12
- Fee Per Order Ex TaxPayment Fee Rate
- 0.03
- Fee Per Order Ex TaxFixed Fee Per Order Ex Tax
- 0.5
- Fee Per Order Ex TaxTarget Margin Rate
- 0.2
- Fee Per Order Ex TaxOrders
- 500
Contribution Per Order Ex Tax
Contribution Per Order Ex Tax
listing price − costs − fees29.50Result29.50
Reports money for the entered planning period using the declared ex-tax cost and revenue basis. The engine retains full precision; presentation rounding does not feed calculation.
Marketplace Fee Profit Planner formulas →Inputs used by these formula steps
- Contribution Per Order Ex TaxListing Price Ex Tax
- 100
- Contribution Per Order Ex TaxProduct Cost Ex Tax
- 40
- Contribution Per Order Ex TaxFulfilment Cost Ex Tax
- 8
- Contribution Per Order Ex TaxShipping Cost Ex Tax
- 7
- Contribution Per Order Ex TaxMarketplace Fee Rate
- 0.12
- Contribution Per Order Ex TaxPayment Fee Rate
- 0.03
- Contribution Per Order Ex TaxFixed Fee Per Order Ex Tax
- 0.5
- Contribution Per Order Ex TaxTarget Margin Rate
- 0.2
- Contribution Per Order Ex TaxOrders
- 500
Period Contribution Ex Tax
Period Contribution Ex Tax
contribution per order × orders14,750.00Result14,750.00
Reports money for the entered planning period using the declared ex-tax cost and revenue basis. The engine retains full precision; presentation rounding does not feed calculation.
Marketplace Fee Profit Planner formulas →Inputs used by these formula steps
- Period Contribution Ex TaxListing Price Ex Tax
- 100
- Period Contribution Ex TaxProduct Cost Ex Tax
- 40
- Period Contribution Ex TaxFulfilment Cost Ex Tax
- 8
- Period Contribution Ex TaxShipping Cost Ex Tax
- 7
- Period Contribution Ex TaxMarketplace Fee Rate
- 0.12
- Period Contribution Ex TaxPayment Fee Rate
- 0.03
- Period Contribution Ex TaxFixed Fee Per Order Ex Tax
- 0.5
- Period Contribution Ex TaxTarget Margin Rate
- 0.2
- Period Contribution Ex TaxOrders
- 500
Retained Margin Rate
Retained Margin Rate
contribution per order / listing price0.3 percentResult29.5%
Reports percent for the entered planning period using the declared ex-tax cost and revenue basis. The engine retains full precision; presentation rounding does not feed calculation.
Marketplace Fee Profit Planner formulas →Inputs used by these formula steps
- Retained Margin RateListing Price Ex Tax
- 100
- Retained Margin RateProduct Cost Ex Tax
- 40
- Retained Margin RateFulfilment Cost Ex Tax
- 8
- Retained Margin RateShipping Cost Ex Tax
- 7
- Retained Margin RateMarketplace Fee Rate
- 0.12
- Retained Margin RatePayment Fee Rate
- 0.03
- Retained Margin RateFixed Fee Per Order Ex Tax
- 0.5
- Retained Margin RateTarget Margin Rate
- 0.2
- Retained Margin RateOrders
- 500
Inputs used
- Listing price
- 100.00
- Product cost
- 40.00
- Fulfilment cost
- 8.00
- Shipping cost
- 7.00
- Marketplace fee rate
- 12%
- Payment fee rate
- 3%
- Fixed fee per order
- 0.50
- Target retained margin
- 20%
- Orders
- 500
Open this calculator with preset values
This calculator supports documented, shareable scenario URLs. Compatible assistants and applications can construct links using the parameters below.
Scenario links contain only allowlisted numeric and closed-choice inputs shown in the URL; Margin101 excludes free text and identifying fields. Anyone you share the URL with can read those numbers, so do not include private or identifying data.
| Parameter | Meaning | Unit | Allowed values | Presence | Default |
|---|---|---|---|---|---|
| fixedFeePerOrderExTax | Fixed marketplace or payment charge. Enter the amount on one consistent ex-tax market-currency basis. | currency units/planning period, ex tax | 0 to 100000000 | Required | 0.5 |
| fulfilmentCostExTax | Pick, pack and handling per order. Enter the amount on one consistent ex-tax market-currency basis. | currency units/planning period, ex tax | 0 to 100000000 | Required | 8 |
| listingPriceExTax | Current or proposed listing price. Enter the amount on one consistent ex-tax market-currency basis. | currency units/planning period, ex tax | 0 to 100000000 | Required | 100 |
| marketplaceFeeRate | Your entered marketplace fee; no provider default is assumed. | proportion of order revenue charged as marketplace fee | 0 to 1 | Required | 0.12 |
| orders | Expected orders in the comparison period. | whole orders/planning period | 0 to 100000000 | Required | 500 |
| paymentFeeRate | Your entered payment fee. | proportion of order revenue charged as payment fee | 0 to 1 | Required | 0.03 |
| productCostExTax | Product cost per order. Enter the amount on one consistent ex-tax market-currency basis. | currency units/planning period, ex tax | 0 to 100000000 | Required | 40 |
| shippingCostExTax | Seller-funded shipping per order. Enter the amount on one consistent ex-tax market-currency basis. | currency units/planning period, ex tax | 0 to 100000000 | Required | 7 |
| targetMarginRate | Contribution retained from listing price. | proportion of selling price retained as contribution | 0 to 1 | Required | 0.2 |
Marketplace Fee Profit: required listing price
The required listing price shows the price needed to protect the entered retained margin after the full marketplace cost stack.
Formula summary
- Primary formula
- required price = fixed cost stack / (1 − marketplace fee − payment fee − target margin)
Data used here
- The estimate uses your inputs and the general business formula documented in the methodology.
Decision checks
Stress-test the decision
Retest the marketplace fee rate as a percentage of order revenue and fulfilment cost in currency units per order, ex tax.
When this estimate can be misleading
- All provider fees, exchange rates, returns, demand and operating rates are user-entered scenarios.
- Use one consistent ex-tax currency and planning period across compared inputs.
- This is educational business decision support, not accounting, tax, legal or financial advice.
- The required listing price shows the price needed to protect the entered retained margin after the full marketplace cost stack.
Educational estimate, not advice. See all assumptions & limitations →
Related reading
Guides to interpret the decision and its assumptions.
- Platform Fees vs Direct Audience Ownership
Compare platform and direct audience economics using current user-entered terms, acquisition and migration costs.
Read guide
Frequently asked questions
How do I set a viable listing price after marketplace, payment and fulfilment fees?
Use the required listing price as the listing floor, then decide whether to reprice, reduce an order cost or reject the marketplace offer.
Which planning assumptions should I stress-test?
Compare a plausible alternative scenario and verify the decision-critical assumption that changes the plan most.