You’ve been selling on Amazon for six months. Your revenue looks impressive in the dashboard\u2014maybe $15,000 last month. But when you actually pay yourself, after FBA fees, refunds, and ad spend, you’re left with a fraction of what you expected. This is the hidden trap that catches 50% of Amazon sellers: they optimize for revenue, not profit.<\/p>\n
The problem isn’t that you’re doing anything wrong. It’s that without a clear picture of your gross margin and net profit, every business decision is a guess. You don’t know which products to double down on, which to kill, or whether a price increase will actually hurt your bottom line.<\/p>\n
Most sellers know what they pay their supplier. But that’s only half the story. Your true COGS includes product cost, inbound shipping, labeling, packaging, and returns.<\/p>\n
For example, if you buy a product for $8 and it costs $2 to ship to Amazon’s warehouse and $0.50 to label and package, your real COGS is $10.50\u2014not $8. This matters because it directly shrinks your gross margin. According to Deloitte, a 5% reduction in COGS increases gross margin by an average of 8 percentage points, which is massive.<\/p>\n
Audit your last 10 orders. Write down every expense tied to bringing that product to a customer’s door. Be ruthless. Include storage fees if you hold inventory longer than 90 days.<\/p>\n
Amazon takes a cut at three stages: referral fee (typically 15%), FBA fulfillment fee (varies by size and weight), and payment processing (2.9% + $0.30). These three fees often total 35\u201345% of your selling price on low-ticket items.<\/p>\n
If you’re selling a product for $25, you might be left with just $15 after these fees, COGS, and returns. That’s your gross profit before ad spend. Now subtract Sponsored Products ads, and your net margin can drop below 15%.<\/p>\n
Create a simple spreadsheet for one SKU. List the selling price, subtract all three fee categories, subtract COGS, and see what’s left. That’s your true gross margin per unit. Repeat for your top 10 products.<\/p>\n
Once you know your margins, you can test price increases strategically. McKinsey’s research shows that a 1% improvement in price results in an average 11% improvement in operating profit. That’s powerful.<\/p>\n
But there’s a catch: raising prices too aggressively or too fast will tank your sales velocity and buy box eligibility on Amazon. Start small\u2014increase price by 2\u20133% on your highest-margin products and monitor conversion rate and keyword ranking for one week.<\/p>\n
If conversion stays flat, raise again. If it dips below 80% of baseline, pull back. This iterative approach lets you find the sweet spot where you maximize both volume and profit.<\/p>\n
No guessing. No spreadsheets. Just your numbers and your real profit.<\/p>\n