Book · resources and updates

Amazon Ads for Profit

The companion page to Łukasz Koronczok's book: calculators, checklists and updates whenever Amazon Ads changes something.

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Book in preparation

Break-even ACOS calculator

Up to what ACOS do ads pay for themselves on your product? Enter the figures for one unit, in the currency of your marketplace.

Selling price (incl. VAT, if any)

VAT rate (%)e.g. 20 in the UK, 19 in Germany, 0 in the US

Product cost (net)purchase or manufacturing, incl. freight to the warehouse

Amazon referral fee per unitfrom the fee preview in Seller Central

FBA fee or shipping cost

Other costs per unitpackaging, returns, storage

Profit you want to keep (% of net price)used for your target ACOS

Net price–

Profit before ads–

Break-even ACOS–

Target ACOS–

Break-even ACOS = profit before ads ÷ net price. Amazon Ads reports sales without VAT, so the calculation starts from the net price.

ACES — Ad Campaign Efficiency Score

ACOS tells you what a sale costs, not how many sales you get. ACES combines both: margin after ads and the number of orders. It is a metric I developed myself; chapter 3 of the book explains it in detail.

ACES = (break-even ACOS − ACOS) × ln(orders + 1) ÷ 10

Above 0: the campaign earns money after ad costs. The higher, the better it balances margin and volume.
Exactly 0: break-even.
Below 0: the campaign loses money.
A campaign without orders has no score — it gets a red flag instead.
Always compare periods of the same length, e.g. the last 30 days.

Your break-even ACOS (%)taken over from the calculator above

Campaign	Sales	Spend	Orders	ACOS	ACES	Verdict

Updates

Amazon Ads changes fast. This is where I record changes that affect the book. Last checked: 26 October 2026.

29 Sep 2026 — The platform is now called Amazon Ads Agent: the ads console and the former DSP in one place. Sponsored ads keep running. Source
Sponsored Display is now called “display ads” and Sponsored TV “streaming TV ads”. Existing campaigns keep running. Source
late Oct 2026 — Amazon DSP has become part of Amazon Ads Agent; its programmatic features live in DVA+, rolling out from late October 2026. Source
by 31 Dec 2026 — The legacy sponsored ads and DVA reports are being shut down. Saved and scheduled reports and the historical data on those pages will be permanently deleted — export what you need before then. Source
30 Jun 2027 — Reporting API v3 will be deprecated (replacement: Reporting v1). This affects tools and integrations. Source

Checklists

The checklists from every chapter will appear here when the book is published.

About the author

Łukasz Koronczok has been selling on Amazon since 2009. Today he and his team run ad campaigns, listings and automation for sellers and brands across Amazon's European marketplaces.

Questions about the book: info@netanaliza.com

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Independent publication. Amazon and Amazon Ads are trademarks of Amazon.com, Inc. or its affiliates. This book and website are not affiliated with Amazon.