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The SKU split
Estimate per-SKU profitability under Amazon 1P versus your current FBA configuration. Input wholesale cost, dimensional weight, expected retail price, category, and the wholesale rate we'd pay (35–45% is the typical range). Output: net per-unit margin on each side — with realistic 3P operating costs (PPC, returns) included so the comparison reflects what 3P actually costs to run, not just headline margin.
Edit the inputs above. The full breakdown appears here once values change.
An order-of-magnitude per-unit margin comparison. The calculator assumes typical wholesale spread, Amazon's standard 1P retail-pricing behavior, and your input values for wholesale cost and FBA fee. It does not factor in: category-specific Amazon negotiation outcomes, co-op marketing co-investments, vendor-side chargeback rates, or your specific PPC bid economics across channels. Use it to identify SKUs worth a closer look, not as a final commitment to switch.
Order-of-magnitude. On the 3P side we use real Amazon Canada FBA fees, real category referral rates, and industry-typical assumptions for PPC (~12% of revenue) and returns (~5%) — every 3P seller actually pays these, so excluding them would flatter 3P unfairly. On the 1P side we use your input for the wholesale rate (the 35–45% range is what we typically pay). Per-SKU reality varies based on the negotiated wholesale rate, your real PPC efficiency, and category-specific Amazon Business volume. Use the call to validate.
Because every 3P / FBA seller spends on it. Sponsored Products is the dominant traffic source on Amazon — sellers who don't run PPC don't move volume. Industry-typical spend is 10–15% of revenue. We use 12% as a midpoint. If your actual PPC efficiency is better or worse, the comparison shifts directionally.
The dimensions tier input is a proxy for it. For SKUs in Large (oversize) or Special oversize tiers, the FBA fee load is typically substantial enough that 1P unit economics frequently win even at modest wholesale-price spreads. The calculator reflects this directionally.
Not modeled in the per-unit calculation. S&S compounding effects are best evaluated as a multi-quarter projection rather than per-unit math; we cover that on the call for consumable SKUs.
Currently no — v1 of the tool is single-session. Email the breakdown to yourself to keep a record. Saving and revision is on the v2 roadmap.
Bring the SKU list (with the calculator outputs you found interesting) to a 30-minute discovery call. We'll run verified per-SKU math against our category-specific models and confirm or refine the estimator's directional signal.