Seven worked analyses, each built on Amazon’s own published rates and each showing the arithmetic. The products and accounts in them are modelled rather than real, which is stated on every page — the fees are not.
They exist because most of what circulates about Amazon economics is either a vendor’s marketing or a number repeated until it sounded true. Every figure below can be checked against a rate card or a Seller Central report.
- Where the Margin Goes on a £34 Amazon SKU
- How a 0.6-Inch Measurement Error Costs $1,116 a Quarter
- The 2026 Bulky Fee Restructure: Who Won and Who Lost
- Diagnosing an Amazon Traffic Decline: The 20-Minute Sequence
- What £12,000 of Monthly Amazon Ad Spend Actually Buys
- Rebuilding a 109-Character Amazon Title in 75
- What a Forensic Amazon Audit Checks, and What It Finds