About

A salon owner who learned the numbers the hard way.

I'm Stevee Devonda, a multiple salon owner based in Queenstown, New Zealand. Everything on this site started as a problem I had to solve in my own salons, on real wages and real rent.

Stevee Devonda, smiling, standing in the Iron + Ivy salon beside a styling chair
Stevee Devonda, co-owner of Iron + Ivy, Queenstown, and Revolver, Arrowtown
2×Iron + Ivy’s yearly sales, more than doubled since our first full year
+20%Average spend per visit, up from $184 to $221
15People on our payroll, across two salons

From our Kitomba records. Ex GST, 2019/20 against 2025/26.

Why The Numbers Room exists

Full columns don't mean money in the bank.

Before Iron + Ivy opened, I studied small business management. It gave me disciplines most salons are never taught: knowing what every service really costs, what the team really costs, and what's left once GST, wages, commission, product, leave and overheads have taken their share.

I learnt and developed the skills and knowledge that grew our business through a pandemic, the recovery, a recession and the cost of living crisis. We made decisions on what the numbers said, not on whether a week felt busy.

Most salon owners are brilliant at hair, at people and at building a beautiful experience. Very few of us were ever taught the commercial side. The tools out there are usually too generic, too complicated, or built by people who have never run a salon. So I built the ones I needed, and now you can use them too.

You don’t need to spend thousands of dollars on salon coaches. With the right tools and the right knowledge, you can take control of your numbers and grow your business.

Steveeco-owner of Iron + Ivy, Queenstown, and Revolver, Arrowtown

The story so far

From a business course to two salons

Business training

Before 2019

I complete a small business management course and learn the disciplines that still run our salons.

Iron + Ivy opens

2019

My partner, Lauren McMurray, starts Iron + Ivy in Queenstown, one of the most expensive towns in the country to run a business, and I take on the business side.

A tough year

2020

The disciplines hold, and Iron + Ivy’s sales grow 24% over the 2020/21 year.

Revolver opens

November 2024

Our second salon: a boutique salon in Arrowtown, for Arrowtown locals.

The Numbers Room

2026

The tools I built for our salons, rebuilt so any New Zealand salon, stylist or clinic can use them.

What runs in our salons

I use this stuff every week.

I run Iron + Ivy and Revolver on a set of tools I built myself. The ones on this site are the ones any owner can pick up and use, on New Zealand rates, without a business degree.

What I believe

How I think about salon numbers

You're not bad with money

You were never shown the maths. Once you see it, it's not hard. It's just nobody's favourite job.

An answer beats a framework

You don't have time for a twelve week course. You have twenty minutes on a Sunday night. So the tools give you a number and tell you what to do with it.

Kind to people, firm on numbers

A stylist who's under target isn't a problem to be managed. They're a person who needs one clear thing to aim at. The numbers make that conversation easier, not colder.

Your numbers are yours

Nothing you type into a calculator is sent to me. It stays in your browser. I never name clients and I never share anyone's figures.

A note on what this is not

I'm a salon owner, not an accountant, a lawyer or a financial adviser. The tools give you general information to make your own decisions. For tax, employment agreements and anything with legal weight, check with a professional who knows your situation. Good ones will be pleased you turned up with your numbers worked out.

Next step

Not sure where to start?

Tell me what's going on in your salon and I'll point you to the right tool or service. If a tool is all you need, I'll say so.