How to grow your business — 3 numbers you need to know

What’s covered

• 00:50Why 'I'm not a numbers person' is the most expensive sentence in business
• 04:20Number one: gross margin, and why revenue tells you nothing without it
• 11:00Number two: cost of acquiring a customer
• 17:30Number three: customer lifetime value
• 22:15Putting the three together to decide what you can afford

Show notes

This is the episode Anna describes as a wake-up call. Three numbers determine whether a business can grow profitably, and most owners can quote their revenue and none of the three. The episode explains each one in plain language, how to work it out from information you already have, and what decisions it unlocks.

Anna starts with the objection. Plenty of owners say they are not numbers people, and she is direct about what that means in practice: every significant decision — pricing, ad spend, hiring, range expansion — is being made on feel. It is entirely possible to grow revenue while going backwards, and the owners it happens to are almost always the ones who track sales and nothing else.

The first number is gross margin. What is left after the direct cost of delivering the thing you sold. Anna walks through how to calculate it honestly, including the costs that get quietly left out — transaction fees, shipping subsidised as free, packaging, discounting. Margin is the number that decides whether growth helps or hurts, because a business scaling a low-margin product simply scales the problem.

The second number is cost of acquisition. Total marketing spend divided by new customers acquired, including the spend that produced nothing. Anna is clear that this must include everything, not just the ad platform's reported figure, and that the platform's attribution is a marketing tool rather than an accounting one. Knowing this number turns a debate about whether ads are working into an arithmetic question.

The third number is lifetime value: what a customer is worth across the whole relationship, not the first transaction. Anna gives a straightforward method for estimating it from twelve months of order history without needing sophisticated tooling. This is the number that determines what you are allowed to pay to acquire a customer, and it is why two competitors can bid very differently for the same click.

The final section puts them together. If lifetime value is well above cost of acquisition and margin is healthy, you have a business that should spend more on marketing, and hesitating is costing you growth. If the gap is thin, more spend accelerates a loss. If you do not know, you are guessing with real money. Anna closes with the habit she recommends: calculate all three this month, then review them quarterly, because they move as your product mix and channels change.

Transcript

Resources mentioned

• The $150K to $1M Roadmap
• Take the Growth Scorecard