ARCAS Systems
Chapter 2

Know Your Numbers

The one thing

A founder who does not know their numbers is flying blind. You only need a handful, and you can learn them this week.

Start here

You do not need to be an accountant. You need to know a few things at any moment, and to look at them often enough that they stop being scary. Numbers are frightening only while they are hidden. The moment they are in front of you on one simple page, they stop being a source of dread and become just the truth about your business, which you can act on. The fear was never really about the maths. It was about not knowing, and the cure for not knowing is to look.

The trap most beginners fall into is watching only the money coming in. Revenue feels like the score, so it is the number they celebrate. But revenue on its own tells you almost nothing about whether you will survive, because a business can be taking in more money every month and still be quietly running out of cash. What keeps you alive is the relationship between a few numbers, not any single one of them. Learn the handful below, put them on one page, and look at that page every week. That habit alone puts you ahead of most people who have been in business for years and still could not tell you these numbers if you asked.

The numbers to know

  • What is coming in. The money your customers actually pay you.
  • What is going out. Everything you spend to run the business and deliver the work, including the cost of any help you have hired.
  • What it costs to win a customer. Roughly what you spend, in time or money, to get one new yes.
  • What a customer is worth. How much a customer pays you in total across the whole time they stay with you, the first payment and every one after it.
  • How long your money lasts. If nothing changed from today, how many months of spending your current cash covers before it runs out.

The one question that ties them together

Ask yourself this one question, and let the numbers answer it. Given how fast you are growing and how fast money leaves, do you reach the point where more comes in than goes out before the cash runs out? If yes, you are alive and you can keep building. If no, you now know exactly what has to change, whether that is winning customers faster, keeping them longer, or spending less, and you know it now, while you still have time and choices, instead of later, when you have neither.

A worked example

Say your tutoring service has fifteen tutors on monthly plans and you just hired a part-time helper. Money is coming in every month, so you feel fine. Then you build the one-page dashboard for the first time. What is coming in looks healthy. But what is going out has jumped, because of the helper's pay and a tool you subscribed to. When you put the two side by side, you are barely ahead each month. Then you add the last number, how long your money lasts, and see that one slow month would put you under real pressure.

That page is uncomfortable to look at, but look at what it just gave you. Before, you were feeling fine on the strength of the money coming in, blind to the fact that your costs had quietly caught up with it. Now you can see it, so you can act while there is still room. You decide to win three more tutors before adding any new cost, using the repeatable path you already know works. You are not panicking. You are steering, because you can finally see the road. The founder without that page would have carried on feeling fine right up until the month the money did not stretch, and by then the only options left are the painful ones.

The fear, named

The fear is that the numbers will show something bad, so it feels safer not to look. That is the exact trap. The bad news does not go away while you avoid it. It just arrives later, bigger, and with fewer options left to fix it. A founder who checks a simple dashboard every week is never caught by surprise, and it is the surprise, more than any single bad number, that kills small businesses. Looking does not make the problem real. Looking is how you stay in control of it, even when the number is not the one you wanted.

Your move this week

Build a one-page dashboard with the five numbers above, filled in with your real figures, however uncomfortable they are to write down. Use the true amounts, even the ones you would rather round off, because the rounding is how founders hide bad news from themselves. Look at it, and answer the one question honestly: are you on track to reach the point where the business pays for itself before the cash runs out?

You are ready when

You know your handful of numbers and can answer, honestly, whether the business reaches the point where it pays for itself. You are steering with your eyes open. With customers, systems, first help, and a clear view of the numbers, the last question of this track is whether and when to make the business official, so the final chapter walks through getting your licence with open eyes.

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