Seller teams often review sales, advertising and inventory separately. Better decisions come from connecting those views into contribution margin at product and portfolio level.
Define contribution consistently
Agree on which costs are included and use the same calculation across teams. Marketplace fees, fulfillment, advertising, returns and configurable overhead should be visible.
Review margin at SKU and portfolio level
A strong portfolio can hide weak products. Compare contribution by SKU, brand, marketplace and category.
Investigate movement, not just totals
Look for margin changes caused by cost updates, fee changes, returns, discounts, advertising or fulfillment shifts.
Connect profit to operating action
Profit analysis should produce decisions: replenish, reprice, improve listing quality, reduce ad waste or stop tying up cash.
This guide is general educational content and does not replace marketplace-specific, legal, tax or professional advice.