Only Metric Linked to Profit

The Core Problem

Everyone chases dashboards, but the real engine is a single number that screams profit.

Look: traffic, bounce, session time — nice for bragging, terrible for cash flow. They’re like decorations on a cake that no one eats.

Here is the deal: contribution margin per acquisition (CMPA). It tells you, in cold hard dollars, whether a lead is worth the spend.

First, it ties revenue directly to cost. Second, it scales with volume, so you can forecast profit like a weather model.

Imagine you spend $50 on a click, close a $200 sale, and your cost of goods is $80. CMPA = $200 - ($50 + $80) = $70. That $70 is profit per customer.

Step one: plug your ad spend, product cost, and sale price into a spreadsheet. Step two: watch the CMPA line light up or dim as you tweak bids.

And here is why you should abandon vanity metrics now. When CMPA slides below zero, cut the channel. When it soars, double down.

Stop reporting page views. Start tracking only metric linked to profit and let it drive every marketing decision.