Google Ads Can Turn £100 Into £1 And Still Call It A Win

Let's Celebrate What Google Ads Calls a "Win"

You sell a pair of Nike trainers for £100 retail.

Google Ads says you spent £15 to get the sale.

That's 6.6x ROAS.

The agency says: "We made you £100."

No. You didn't.
You moved £100 through a very expensive system.

Here's What That £100 Actually Pays For

Before ads, that sale has £1.54 left of wiggle room to 'buy' that consumer.

£1.54.

That is your entire margin available for Google Ads.

So Let's Talk Break-Even

If you measure ROAS the way Google Ads does:

Yes. 65.

That means your celebrated 6.6x ROAS is not a win.
It's an order of magnitude away from break-even.

This Is Why Growth Feels Tight

This is why £3m-£10m DTC brands grow revenue, grow spend, and still feel permanently cash-tight. It's also why ROAS can look good while profit is down.

Agencies tend to optimise ads in isolation.
Retail does not work in isolation.

If your Google Ads goal is revenue or ROAS, you are optimising optics.

If your agency cannot calculate break-even ROAS by SKU, they are not managing growth. This is one of the clearest agency ceiling signals.

They are managing the dashboard.

And dashboards do not pay suppliers.

What We Actually Optimise Around

At our agency, this is the metric we actually optimise around. We call it Profit on Ad Spend (POAS).

Not revenue. Not blended ROAS.

Break-even ROAS by SKU.

Because if you don't know that number, you don't know whether you're scaling profit or just accelerating the problem. This is what spend governance actually means.