The useful bits

  • Use the analysis to review contribution margin after fulfilment, fees and advertising for each channel. Keep the platform revenue comparison separate from a SKU’s cost calculation.
  • Prime Day moved between quarters. The analysis is not evidence that seller CPCs or individual fees rose by the same percentage.

What the source covers

Ben Donovan compares Amazon’s $66.1 billion in third-party seller services and advertising with $68.5 billion in its own online-store sales in Q3. The resulting 96.6% is a ratio between company revenue lines, not a fee charged to a seller.

Use it in your next review

Use the analysis to review contribution margin after fulfilment, fees and advertising for each channel. Keep the platform revenue comparison separate from a SKU’s cost calculation.

Read the evidence in context

Prime Day moved between quarters. The analysis is not evidence that seller CPCs or individual fees rose by the same percentage.

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