The numbers we check before scaling any eCommerce brand

Hey, it’s Patrick!

A founder jumped on a call with us recently.

Healthy revenue.

Ads running across Meta and Google.

Email driving sales.

On the surface, everything looked fine.

But one simple question stopped the conversation.

“What’s your real cost to acquire a new customer?”

Not Meta CPA.

Not Google attribution.

The actual blended number.

They didn’t know.

And without that number, scaling becomes a gamble.

Check out the full training here 👇

Before we scale ad spend for any brand, we map four financial metrics.

These determine whether growth will actually produce profit.

→ New customer acquisition cost

→ Marketing efficiency ratio

→ Contribution margin

→ Lifetime gross profit

Together, they show the real economics of the business.

Take acquisition cost.

Total marketing spend divided by new customers.

That single number tells you whether your growth engine works.

If acquisition cost creeps too high, scale becomes fragile.

Then there’s marketing efficiency ratio.

Total revenue divided by total marketing spend.

Every platform wants credit for sales.

MER shows how the entire system performs together.

Next comes contribution margin.

Revenue per order

− cost of goods

− shipping

− discounts

− variable costs

That number defines your guardrails.

It tells you how aggressive acquisition can be without breaking profitability.

Finally, lifetime gross profit.

Average order value × purchase frequency × gross margin.

This is the number serious operators focus on.

Because when retention is strong, the entire acquisition model changes.

Once these numbers are clear, decisions become obvious.

You know:

→ when to scale

→ how much you can spend

→ where growth is constrained

No guessing.

Just math.

If you'd like help mapping these numbers for your brand

👉 Book a Call With Me

We’ll walk through the financial benchmarks behind your growth engine.

Good marketing drives traffic.

Great operators understand the economics behind it.

Talk soon,

Patrick O’Driscoll

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