The offer math most brands skip

Hey there, it’s Patrick!

A founder recently told me:

“We launched a new offer… ads didn’t work.”

So I asked one question.

“What CAC did the offer allow?”

Silence.

Because the offer was never modeled.

No economics.

No acquisition guardrails.

Just a product, a discount, and ads.

And that’s where a lot of offers fail.

When we design offers for paid ads, we start with the economics first.

Before creative.

Before media buying.

Before budgets.

We map the math.

Here’s the simple framework we use with 7–8 figure brands.

Step 1 - Start with the real AOV

Example:

Starter kit bundle → $95

Then subtract the real costs:

→ Cost of goods

→ Pick & pack

→ Shipping

→ Payment fees

→ Return rate

Let’s say total delivery cost = $31.96

That leaves:

$63 gross margin.

Step 2 - Decide your profit target

Let’s say the brand wants $9.50 profit per order.

Now the math gives us the key number:

Maximum CAC = $54

That’s the guardrail.

Spend more than that, the offer breaks.

Spend less, the offer scales.

Step 3 - Work backwards from traffic

Now the marketing targets become clear.

If cost per click is $1.50, your site needs roughly:

~2.8% conversion rate

If clicks drop to $1, your conversion rate requirement drops too.

Suddenly the entire acquisition strategy becomes measurable.

Different offers produce completely different models.

A high-margin skincare bundle.

A $175 kitchen product with a free gift.

A subscription brand willing to lose money on the first order because retention makes the model work.

Each one creates different CAC limits and marketing targets.

This is why guessing offers rarely works.

The numbers have to lead.

Before launching a new campaign, we always answer three questions:

→ What CAC does this offer allow?

→ What conversion rate do we need?

→ What click cost keeps it profitable?

If those numbers make sense…

Then we scale.

If you want the exact spreadsheet we use to model offers like this, plus a walkthrough of how to use it, watch the full training here:

👉 How to Engineer Profitable Offers (Full Training)

And if you'd like help mapping the economics for your brand, you can Book a Call With Me

Great ads help.

But profitable offers make scaling possible.

Talk soon,

Patrick O’Driscoll

Watch My Free Trainings