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Case Study 8 min read

From $102K Monthly Loss to $44K Profit in 90 Days

A multi-million dollar Shopify brand. Five years in. Revenue growing, but profit kept slipping. Here’s what changed when they finally saw the real math.

The results:

In just 90 days with Pentane, this Shopify brand transformed their profitability:

  • Revenue up 234% year-over-year
  • Month 1: $102K loss
  • Month 2: $12K loss
  • Month 3: $44K net profit

Before: The Problem Wasn’t the Business

The CEO knew the product. The brand had real traction. But the financial picture was scattered — not because the business was broken, but because the numbers lived in tools that never talked to each other.

The team reviewed their P&L regularly. But a P&L shows last month. It doesn’t tell you what’s happening now, and it doesn’t tell you what to do about it.

Their agency was running paid ads and optimizing for ROAS — which looked fine. Contribution margin told a different story. Without clear profitability data from the company, the agency had no basis for knowing whether the budget was actually working. They chased the metrics they had.

Everyone was making decisions. Nobody had the right information.

After: The Math Became Clear

When they connected their Shopify data, ad spend, COGS, and costs into Pentane, the first thing that surfaced was a surprise: they were underspending on ads.

Not overspending — underspending. Their ad budget had been set arbitrarily, with no connection to the contribution margin required to cover fixed costs. Pentane showed them they needed to nearly triple their spend to generate the revenue required to break even — and gave them a specific ROAS floor to target: 2.9.

Once they had that number, everything else got clearer. Real-time profit tracking by day, week, and month meant the team could see the impact of ad changes as they happened — not 30 days later when the books closed.

That’s when they caught something they never would have found otherwise: a spike in revenue and ROAS tied to a single influencer post. They turned it into an affiliate deal that’s still driving profitable growth today.

Why It Worked

The change wasn’t a new ad strategy or a new agency. It was finally having the math in one place — and knowing what to do with it.

Contribution margin connected to ad spend. A ROAS floor built from real costs, not gut feel. Profit tracked in real time instead of discovered after the fact.

That’s what Pentane does. Not another dashboard. Not more charts to interpret. The actual numbers, and a clear answer for what to do next.