Your Amazon sales are up. Your margins are down. And you're probably celebrating
By Ant Finch · March 30, 2026 · Curated by George's Blog
Your Amazon sales are up. Your margins are down.
And you're probably celebrating the wrong metric.
Most brands trying to scale on Amazon are optimising for a metric that makes them feel good not the one that the stakeholders need or keeps the Amazon wheels turning.
Here's what's most likely killing your margins today..
→ Ad costs are creeping up while your ACOS reporting looks "fine"
→ Vendor terms compound year on year without pushing back on Amazon.
→ A catalogue so large that your best sellers are holding up your worst.
→ No sku level P&L..just blended % that hides what's going on
The brands that win long term are not the ones growing the fastest.
They're the ones who know where every £ is going and what it's going to do.
What metric does your team obsess over revenue or contribution margin?
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🚀 I help Amazon vendors increase their margins by 5-20% in 90 days