Lara GuevaraSupply Chain expert (Product and Service)

The hardest conversation that I had with founders

24 Feb 2026 · 2 min

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1:34

In this concise business‑advice monologue, the speaker recounts a case where a founder’s best‑selling, “hero” product—a decorative storage piece—generated the highest sales volume and advertising spend but delivered a meager 11% contribution margin after accounting for hidden costs. The product’s gross margin appeared healthy at 62%, yet heavy shipping ($9.4 per unit), a 14% return rate, and a $18 customer‑acquisition cost eroded profitability. By contrast, a lightly promoted shelf organizer achieved a 28% contribution margin, low returns, and sold largely via word‑of‑mouth. The speaker argues that founders often build brands around such misleading hero products and recommends a simple diagnostic: rank SKUs by sales volume and by contribution margin; mismatched rankings signal that the wrong product is being pushed. The video ends with a call‑to‑action inviting viewers to comment “hero” for a free audit of their best‑seller.

Chapters

Her best-selling product was making her the least money, and she'd been pushing it for 4 years. This is the hardest conversation I have with founders. The product they built the brand on, sometimes it's not the one that should carry the business forward. Let me show you what we found. Her hero product, a decorative storage piece, sold 3,200 units a year. Best Seller by volume, got 40% of her ad spend, featured in every campaign. Gross margin 62%, looks great on paper, but contribution margin after all the cost is 11%. Here's why. It was heavy. Shipping cost is $9.4 per unit. Returns rate was 14% because customers couldn't judge size from photos. Customer acquisition cost was $18 because it required a A lot of convincing. That's 62% gross margin became 11% real margin. Meanwhile, a simple shelf organizer she barely promoted, 28% contribution margin, light, low returns, sold itself through word of mouth. She'd been pouring money into a product that barely contributed while ignoring products that actually made money. 4 years of building the brand around the wrong product Rank your SKUs by volume, then rank by contribution margin. If those lists don't match, you're probably pushing the wrong product. Comment "hero" if you want to audit your best seller.