Real monthly profit contribution after every true cost
$252k−$196k · your 3 biggest sellers are underwater
Your bestseller is underwaterbiggest seller, below the line
✓Healthy month — 18% margin, blended ROAS 4.0x, every product above water.Built from Shopify orders and ad-platform ROAS at face value. Looks profitable… until landed cost, true CAC and the discounts land.
⚠ Your three biggest sellers sink below the profit line — they lose money on every order, and blended ROAS is what floats them on your dashboard.
Real landed cost + true CAC by channel + the discount drag turn an 18% month into 4% — about ~$196k of reported profit that isn't there. Your single-origin and gear stay above water; the volume sellers buy revenue, not profit.
Illustrative · representative model, not a client. COGS estimated for 2 SKUs · attribution windows disagree ±18% · returns from a 60-day window — flagged, not hidden.