Early Stage Growth • Ballpoint

Early Stage Growth • Ballpoint

Is your CM per session above £1.70? Time to scale

The only metric that matters

Josh Lachkovic's avatar
Josh Lachkovic
Sep 23, 2025
∙ Paid

There’s one key metric that demonstrates the overall health of your marketing. It’s not CPA, it’s not ROAS, and it’s not even CM3 by itself. It’s contribution margin per session.

I.e. for every user who lands on your website, how much profit do they give you?

TL;DR
Most performance marketers obsess over the wrong numbers. They'll tell you their 3.5x ROAS …

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