Reading Your Numbers Like an Operator, Not a Bookkeeper
Revenue tells you what happened. A handful of other numbers tell you what to do next.
Revenue is the easiest number to watch and the least useful one for deciding what to do tomorrow. It tells you the size of what already happened; it says nothing about whether it was worth doing.
The trend that actually matters
Net margin vs. revenue, six-month trend
- Revenue (indexed)
- Net margin %
Revenue climbing while margin holds steady or improves is a healthy business. Revenue climbing while margin quietly erodes is a business selling more to earn less — and the revenue chart alone can't tell those two stories apart.
Revenue is what the business made. Margin is what the business kept. Only one of those is the score.
Four numbers worth checking weekly
Net margin by SKU
Not just overall — individual products can be quietly unprofitable inside a healthy-looking total.
Reconciliation gap
The dollar difference between expected and actual settlement, as a running total.
Open reimbursement claims
Money identified as owed but not yet filed or resolved.
Fee rate drift
This month's effective fee rate against last month's, by category.
Weekly, not monthly
A monthly review catches problems a month after they started. A weekly one catches them while there's still a full month left to fix them — the cadence matters as much as the metric list itself.
Why this is harder than it sounds
None of these four numbers live in one place by default. Net margin by SKU needs fees, ad spend, and COGS joined to each order — which is what real-time profit tracking by SKU exists to do. The reconciliation gap needs settlements matched against orders. Open claims need fulfillment-center events tracked against expected inventory. Getting an honest weekly read on all four, by hand, is a standing part-time job — which is precisely the gap a connected view of the data is meant to close, and one that needs no more than read-only access to your Amazon account to do it.