Your revenue number is the wrong number
Seller Central reports what you sold. It never reports what you kept. For most brands those two figures are separated by nine deductions and a margin nobody modeled.
What actually reaches you, monthly
$6,731
of $41,988 revenue, 16.0% margin, $5.61 a unit. Updates as you type.
Every dollar of revenue, left to right. The warm band is yours.
Thin, the margin is doing all the work
You are profitable, but not by much. A fee change, a returns spike, or three points of TACoS drift takes this to zero. Fix the stack before you buy more traffic.
Assumes unit volume holds. Test it on one SKU for a fortnight before you move the catalogue.
Brands we support
Show your work
A calculator that will not explain itself is just a lead form with arithmetic.
PRICE IS A FEE INPUT NOW
The fulfillment fee now also depends on what the item sells for, in three bands: under $10, $10 to $50, and over $50. A $9.99 item and a $10.99 item of identical size and weight no longer pay the same rate.
REFERRAL FEE
A slider, because it varies by category, from 8 percent to 15 percent in most of them.
THE LINES OFF THE RATE CARD
A 3.5 percent fuel and logistics surcharge Amazon calls temporary, inbound freight and placement at 45 cents a unit, and Transparency labelling at 3 to 7 cents a sticker. Together they are the difference between the rate card and the invoice.
How to identify revenue leakage on Amazon
Most brands run these three in the wrong sequence, which is why more spend so often produces less money.
01
Read the numbers honestly
Run your top five SKUs, not your favourite one. The catalogue average hides the SKU that is quietly funding its own advertising, and that SKU is usually the one with the most volume.
02
Fix the stack then paid ads
Price, size tier, and landed cost are structural. Advertising is not. If the unit does not work at rest it will not start working under spend, and every extra dollar of traffic multiplies the leak instead of covering it.
03
Identify if you need help
A management retainer has to come out of the number AFTER you have identified everything you need help with.If it eats more than a 25% your take-home, the honest answer is not yet.
The assumptions, in plain sight
Where the fee numbers come from
Amazon's published 2026 fulfillment schedule, read straight off the fee sheet, for the non-peak period or for peak, which runs 15 October to 14 January and costs more on every line. Fee schedule current as of August 2026.
Our defaults
18 percent TACoS, which is what we typically inherit against a 10 percent target, a 5 percent returns allowance, and 1.5 percent for storage. Change any of them to your own actuals.
What this deliberately leaves out
Overhead, payroll, tariffs, freight to the warehouse, software, and every non-Amazon channel. This is channel contribution for one SKU, not company profit, and it will always read higher than your P&L does.
Why the result is not gated
Because a number you have to trade your email for is a number you will not trust. The answer is free and complete. If you want the working sheet with your figures already in it, that is the one thing we ask for an address in return.
What the verdict is actually judging
Two things: your take-home margin, and what a $2,500 monthly retainer would cost as a share of that take-home. Above 20 percent margin with a retainer under a quarter of it, you have room to buy growth. Under 12 percent, you do not, and no agency should tell you otherwise.
Every first call opens the same way.
A founder tells us their revenue. We ask what they took home last month. The line goes quiet, not because they are careless, but because Amazon reports the first number everywhere and the second number nowhere. So we built the afternoon into a page. You should be able to walk into that conversation already knowing the answer, whether or not you ever talk to us.
From our CEO
There are no tricks. Amazon is a relevancy engine. The money is in the fundamentals, and most brands have never actually added them up.
Matson Tolman, CEO
Want this run across the whole catalogue?
Send us the SKU list and we will come back with the same breakdown for every one of them, plus the three that are quietly losing money. Twenty minutes, no deck, and you keep the analysis either way.