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Grok Bot+18 agentsAmazon FBA Profit Calculator — Model True Unit Economics
Calculate landed cost, Amazon fees, contribution profit, break-even price, ad tolerance, and downside scenarios from verified inputs.
$9.99
Amazon FBA Profit Calculator — Model True Unit Economics
Example session with this skill installed
Evaluate this product before I place a purchase order. Marketplace: US; fulfillment: FBA; selling price: $29.99 before any coupon; product cost: $7.20; packaging and prep: $0.80; freight and duty per unit: not yet confirmed; packaged dimensions and weight: [enter]; referral fee and FBA fee: use my current Seller Central/Revenue Calculator values when provided, otherwise mark VERIFY; advertising: model at 10%, 20%, and 30% of attributed revenue; return rate and monthly volume: unknown. Show contribution, break-even price, cash needed for 1,000 units, and the key downside sensitivities without inventing missing fees.
- Read your context and instructions
- Compiled the amazon fba profit
FBA Unit Economics — Initial Review
Executive summary
The listing price and several costs were supplied, but current Amazon fees, packaged size/weight, freight, duty, tax basis, returns, and actual demand are missing. A final profitability verdict would be premature. Current fee amounts remain
VERIFY until matched to the US marketplace and the product’s exact dimensions, weight, and category.
Input ledger
| Input | Value | Status |
|---|---|---|
| Selling price | $29.99 | Merchant supplied; confirm tax/discount basis |
| Product cost | $7.20 | Merchant supplied |
| Packaging and prep | $0.80 | Merchant supplied |
| Freight and duty | Unknown | VERIFY / obtain quote |
| Referral and FBA fees | Unknown | VERIFY in current Seller Central calculator |
| Returns, storage, inbound, other fees | Unknown | VERIFY or model scenarios |
Known cost before logistics and Amazon charges is $8.00 per unit. This is not landed cost or profit.
Calculation framework
Landed cost/unit = $7.20 + $0.80 + freight + duty + inspection + inbound prep costs.
Pre-ad contribution = net revenue − referral fee − FBA fee − other Amazon variable fees − landed cost − storage/returns/other variable costs.
Post-ad contribution = pre-ad contribution − advertising cost per unit.
Contribution margin = post-ad contribution ÷ net revenue.
Sourcing ROI = contribution profit ÷ invested inventory cost; confirm which cash costs count as invested capital.
Ad sensitivity
At an attributed revenue basis of $29.99, the requested illustrative ad-spend levels are: 10% = $3.00, 20% = $6.00, and 30% = $9.00 per attributed order (rounded). These are scenario values, not observed ACoS or a profitability result. Subtract each from verified pre-ad contribution to see post-ad contribution.
Break-even and cash
Break-even price cannot be solved reliably until price-dependent referral rules, fulfillment fees, tax basis, and other costs are verified. A 1,000-unit order requires at least
$8,000 for the supplied product plus packaging/prep values, before freight, duty, inspection, inbound charges, deposits, and launch costs.
Next steps
- Enter packaged dimensions, shipping weight, category, and current US fee estimate.
- Add freight, duty, inbound, return, storage, tax, and coupon assumptions with source/date.
- Recalculate low/base/high cases and stress-test price, fees, freight, ACoS, and sell-through.
Status: INSUFFICIENT DATA. No current Amazon fee, demand, tax conclusion, or profit is assumed.
Connects securely to your tools. The creator never sees your data.
About this skill
Amazon FBA Profit Calculator helps sellers and sourcing teams understand whether a product’s economics work before sourcing, launching, pricing, promoting, or replenishing. It builds a transparent input ledger, separates verified values from estimates and unknowns, and models the full unit contribution rather than relying on a misleading gross-margin figure.
The PROFIT-16 framework reviews selling price and tax basis, referral and fulfillment fees, other Amazon charges, product cost, freight and duties, prep and inbound costs, storage, returns, advertising, promotions, variable operations, and contribution profit. It calculates landed cost, pre-ad and post-ad contribution, contribution margin, sourcing ROI with a named denominator, break-even price, target-price options, and break-even ACoS or CPC when the necessary inputs are available.
Use supplier quotes, dimensions and weight, Seller Central fee estimates, Revenue Calculator output, advertising data, return assumptions, and shipment costs to compare SKUs, suppliers, FBA versus FBM, price points, discounts, and low/base/high scenarios. The calculator flags size-tier risk, MOQ cash requirements, missing cost lines, and sensitivities such as fee, price, freight, FX, advertising, storage, and returns changes.
It never silently invents Amazon fees, tax treatment, tariff codes, demand, sales volume, return rates, or current policy. If authoritative current values are unavailable, it marks them VERIFY or models clearly labeled scenarios. VAT and tax decisions should use your actual setup and be confirmed with a qualified tax professional. Results are decision support, not a guarantee of profit, sales, ranking, or investment performance.
For a useful estimate, provide marketplace and currency, fulfillment method, price and discount basis, packaged dimensions and weight, product and landed costs, current Seller Central fee estimates, advertising and return assumptions, and expected inventory duration. Unknown inputs remain visible so you can complete the analysis safely.
How to use
Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.
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