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Strategies, case studies, and product updates from the Profasee team.

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Short, opinionated takes on AI agents, Amazon PPC, pricing, and inventory. No fluff. About once a week.

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A price line crossing a break-even threshold, with the loss zone shaded red below and the contribution zone shaded green above, plus break-even ACoS marked

"Amazon Profit"

Break-Even Analysis for Amazon Sellers: The Floor Under Every Decision

Break-even is the floor under every pricing, PPC, and promo decision. Most sellers cannot name theirs. Here is the operator math, with worked examples.

Chad Rubin · May 31, 2026

A waterfall chart starting at sale price and stepping down through referral fee, FBA fee, COGS, storage, returns, and ad cost to the final contribution margin

"Amazon Profit"

The True Cost of an Amazon Sale: Every Fee, Deduction, and Hidden Cost

The listing price is not the money you keep. Here is every fee, deduction, and hidden cost between an Amazon sale and the contribution margin that survives.

Chad Rubin · May 30, 2026

Two line charts side by side: campaign ACoS flat and healthy, while TACoS climbs, with organic sales share shrinking underneath

"Amazon Profit"

TACoS Explained: What Total ACoS Reveals That Campaign ACoS Hides

Campaign ACoS looks fine while the business bleeds. TACoS tells the truth about whether your ad spend builds organic rank or just rents sales. Here is how to read it.

Chad Rubin · May 29, 2026

A per-unit margin breakdown bar showing sale price at the top and each deduction subtracted in sequence down to the contribution margin that remains

"Amazon Profit"

Contribution Margin Per Unit: The Only Amazon Metric That Tells the Truth

Contribution margin per unit is the one Amazon number that separates the products that fund your business from the ones that drain it. Here is the operator math.

Chad Rubin · May 28, 2026

A waterfall chart breaking a single Amazon sale price down through every deduction (referral fee, FBA fee, COGS, ad cost, returns) to the contribution margin that survives

"Amazon Profit"

Amazon Unit Economics: The Operator Playbook for Real Profit in 2026

Revenue is vanity. Contribution margin per unit is truth. Here is the operator playbook for Amazon unit economics: every fee, every lever, the real P&L.

Chad Rubin · May 27, 2026

Three stacked panels showing Thermometer (a gauge), Thermostat (an if/then circuit), and Agent (a decision tree with multiple weighted inputs), labeled by capability level

"AI Operating System"

Thermometer, Thermostat, Agent: The Three Levels of Amazon Software in 2026

Most Amazon software is a thermometer or a thermostat. Agentic AI is neither. Here is the three-level framework that explains why old-stack tools fail.

Chad Rubin · May 26, 2026

A 7-panel audit dashboard with each trigger labeled (suppressions, browse nodes, variation theme, image policy, bullet limits, flat-file conflicts, mobile rendering), one panel flashing red

"Amazon Strategy"

Amazon Catalog Hygiene: The 7 Listing Audit Triggers That Matter

Catalog hygiene is silent revenue. Here are the 7 audit triggers every Amazon operator should run quarterly to catch suppressions, broken variations, and stale data.

Chad Rubin · May 25, 2026

Two variation trees side by side: one consolidated parent with five children sharing reviews and rank, one fragmented with five orphan ASINs each with thin reviews

"Amazon Strategy"

Variation Strategy: When Amazon Parent ASINs Help and When They Cannibalize

Amazon variation parentage either consolidates rank or cannibalizes it. Here is the operator guide for when to split, when to consolidate, and how to fix existing mistakes.

Chad Rubin · May 24, 2026