The five numbers a salon owner should actually track

Repeat rate — the one that predicts everything else

The share of clients this month who had been in before. It is the closest thing a salon has to a verdict on its own service, because a client who returns has voted with something more costly than a review. It also compounds: a salon holding sixty per cent of its clients needs far fewer new ones to grow than a salon holding thirty, and the gap widens every month. Watch it monthly, per branch, and per staff member where a stylist has enough volume to be meaningful.

• Rising repeat rate with flat revenue means growth arriving next quarter
• Falling repeat rate with rising revenue means you are buying growth that will stop
• Per stylist, it is a fairer measure of service than a rating anybody asked for

Average bill value — whether the work is being sold

Total billed divided by the number of bills. It moves for three reasons and telling them apart is the whole skill: prices changed, the service mix shifted, or the team started adding treatments and retail. Only the third is something you built. A rise straight after a price increase says the increase reached the till; a rise with no price change says somebody is having better conversations at the chair.

• Track it against the month you changed prices, not against last year
• Split by staff member — this is where coaching actually shows up
• A falling average with rising volume usually means discounting nobody approved

Utilisation — what you actually sold of what you had

Booked hours as a share of bookable hours. This is the number that makes two branches comparable when one is twice the size, and it is the one raw revenue hides completely. A smaller branch at ninety per cent utilisation is outperforming a larger one at fifty, while a revenue table says the opposite. It is also the honest test of whether you need more chairs or more marketing — the answer is different depending on which side of about eighty-five per cent you sit.

Retail attachment — the margin most salons leave on the shelf

The share of service bills that also carry a product. It is worth watching separately because retail margin behaves differently from service margin: it needs no chair time, so every rupee of it arrives without consuming the thing you are short of. A low attachment rate rarely means clients do not want the product. It usually means nobody mentioned it, which is a training and prompting problem rather than a pricing one.

Rebooking rate — the leading indicator of all of it

The share of clients who leave with their next appointment already booked. It is the earliest signal you get, because it moves weeks before repeat rate does and months before revenue. It is also almost entirely within your control: rebooking rate mostly measures whether anyone asked. A salon that asks every client at the counter will run far ahead of one that waits for the phone to ring, with no difference in the quality of the haircut.

How to actually look at them

Monthly, together, and against the same month last year rather than last month. Salon trade is seasonal enough that month-on-month comparison mostly measures the calendar — festivals, weddings and school holidays move a salon's numbers more than most decisions do. Looking at all five together is what stops a single figure being over-read: revenue down with repeat rate up is a very different month from revenue down with repeat rate down, and they call for opposite responses.