Most founders look at Seller Central’s Business Reports and freeze. Eighty-four columns of numbers, half of them in the same units, and nothing tells you what’s actually leaking. So they default to staring at gross revenue, watch ACOS, and call it a quarter.
Here’s the short version of what a real operator scans for — six lines you can pull in 90 seconds, and the math behind each one.
What is the first thing to look at on an Amazon P&L?
Pull the Sales Dashboard and subtract returns from the same period. If you cannot do that in one click, your reporting is set up wrong.
How do I check whether Amazon fees are eating into margin?
A 1.5% drift in your fee ratio on a $2M brand is $30,000 you didn’t budget for. Most aggregator dashboards lag the actual fee schedule by 30+ days, which means the drift is invisible until quarter-end. See aggregator software accuracy for why.
How do I find storage waste per SKU?
The pattern we see most often: a brand has 15–25% of SKUs each contributing less than 1% of revenue, but together those SKUs eat 6–9% of total margin via storage tax. Plug that leak first.
What is the difference between ACOS and incremental return?
The fastest test: cut spend on one ASIN for two weeks and measure the total revenue drop. If revenue is flat, the ads were not earning anything. We unpack this in detail in why ACOS is a vanity metric.
What does a healthy refund + safe-T claim ratio look like?
Watch this weekly. A 14-day spike on a hero SKU can torch ranking in a window that takes 60 days to recover.
How do I calculate contribution margin per unit?
This is the only number that tells you whether to scale, hold, or kill. Every other metric on the dashboard is a proxy.
Once you can scan a P&L this way, the next question is which leak is biggest in dollars and which to plug first. That is what The Profit-Leak Method ranks for every brand we audit.
