Revenue As The Metric
The number everyone reaches for is the one that cannot tell a good week from a bad one.
Revenue is the default metric because it is the easiest to compute and the most quoted. It is also the one that cannot distinguish a profitable week from a loss-making one. Any analysis whose conclusion would flip if margin replaced revenue is not an analysis, it is a coincidence.
Pattern
Every question about performance gets answered in revenue. Which products are doing well, which customers matter, whether a change worked — all revenue.
It is the number the source system offers first, and the one everyone recognises.
Why it looks right
Revenue is unambiguous, always available, and comparable across periods without adjustment. Margin needs cost data, which is often in a different system, sometimes stale, and occasionally wrong.
So the analysis that can be done today uses revenue, and the analysis that would be right waits for a data project that never gets scheduled.
Why it fails
Revenue cannot distinguish a good week from a bad one. A line can top every ranking at 100% of target and still lose money on every unit sold. A product line can lead every ranking and lose money on every unit; a customer can top the list and be the reason the year was flat.
The failure is directional, not random. Discounting, freight and financing all push volume up and margin down, so the items revenue flatters are systematically the ones that need scrutiny. An analysis ranked by revenue does not merely miss the problem, it puts the problem at the top of the page labelled as a success.
Instead
Margin is the default unit; revenue is context. In practice:
ranked by lost margin, not lost turnover · a growth claim states both, or it states neither
Where cost data is genuinely unavailable, say so in the output rather than substituting silently — "ranked by revenue; margin not available for this period" — so the reader can discount appropriately.
And run one check before publishing any ranking: would the conclusion change if this were sorted by margin? If yes, the revenue version is not a simplification, it is a different and probably wrong answer.