Why Business Numbers Feel So Confusing
If the words turnover, profit, or cash flow make your head spin, you’re not alone.
In employed roles money is simple. You work your hours, you get paid your salary, and someone else worries about the rest.
When you’re self-employed words like turnover, gross profit and cash flow can feel overwhelming.
The good news? You don’t need to be “good at maths” to run a successful business. You just need to understand some key numbers so you can make the right decisions and feel in control.
This article explains business numbers in plain English. You’ll see examples that make sense for children’s activity businesses.
You will gain an understanding of what each term means and how they influence your business. You can return when needed and work through the examples with your own business numbers.
First things first: income is not profit
This is the most important concept to understand – and the one that often trips people up.
Just because money comes into your business, doesn’t mean it’s yours to keep.
Some of that money will pay for venues, fees, insurance, booking systems, and other running costs.
Turnover = Money Coming In (also called revenue or income)
Turnover is the total money your business brings in before any costs are taken off.
It’s important to know – but on its own, it doesn’t tell you whether your business is profitable.
Example: Say you run 5 classes a week with 14 children per class charging £9 per child
Your weekly turnover is: 5 × 14 × £9 = £630
If you ran that every week for a month, your monthly turnover would be around £2,520.
That number can look exciting – but it doesn’t tell you whether the business is actually profitable yet.
Costs = The Money Going Out
If you’re thinking about starting a business, it’s natural to focus on how much money you’ll bring in. But just as important is understanding what money goes out of the business.
The good news? In service-based businesses like children’s classes, costs are usually very predictable.
A simple way to think about costs is to split them into fixed costs and variable costs.
Fixed costs (also known as overheads)
These are the costs that stay roughly the same each month, whether you run one class or ten.
Examples might include:
These costs are predictable, which makes them easier to plan for.
Variable costs (also known as direct costs or costs of sales)
These costs change depending on how many classes you’re running.
Examples include:
These costs usually increase the more classes you run – but so does your income.
Why understanding costs matters
Understanding your costs helps you to
You don’t need exact figures down to the penny — you just need visibility.
Once you understand your costs, everything else starts to make sense.
Gross Profit vs Contribution
You may hear the term gross profit, which usually means:
The amount of money left to pay your fixed costs, any salaries and your profit after paying the direct costs. Gross profit = turnover – direct costs.
For businesses that sell physical products, this makes sense.
For service-based businesses (like children’s classes), it can be less useful. Working out the traditional “cost of sales” isn’t always obvious.
Instead, a more practical concept is contribution. Contribution looks at what’s left after you’ve paid the direct costs of running a class.
For example:
Your contribution from that class is £80 – £25 – £5 = £50.
That £50 then contributes towards paying your fixed costs and, eventually, paying you.
This is a powerful number because it helps you answer questions like:
Gross Profit Margin (%)
This is the contribution from above displayed as a percentage of turnover.
Gross Profit Margin = Contribution ÷ Turnover × 100
Using the same example: £50 ÷ £80 × 100 = 62.5%
Gross profit margin can be a powerful number to track. It helps when:
If your margin drops, you immediately know something has changed – costs, pricing, or attendance.
Net Profit: The Number That Matters
Net profit is what’s left after all your business costs have been paid.
This is the number that:
It’s important to remember that net profit usually comes before personal tax. I highly recommend you speak to an accountant before taking on a business. They can provide guidance on how much tax you’re likely to pay so you can budget for it from the start. There is nothing worse than a hefty tax bill you are not prepared for.
Cash Flow
Cash flow is about timing – when money comes in and when it goes out.
Even a profitable business can feel stressful if money doesn’t arrive when bills are due.
You can be profitable on paper and still feel stressed if:
Good cash flow gives you breathing space. It reduces anxiety and allows you to plan rather than react.
Many service businesses improve cash flow by:
Break-Even: Removing the Guesswork
Knowing your break-even point helps you plan calmly and confidently, instead of relying on hope.
Your break-even point is when your income exactly covers your costs.
At break-even you’re not losing money, but you’re also not making profit yet.
Knowing your break-even point helps you:
Once you’re consistently past break-even, profit follows.
Break-Even Explained: One Class at a Time
It can be helpful to look at just one class and ask:
How many customers do I need in this class for it to be worth running?
Let’s walk through a simple example.
Step 1: Work out your fixed costs per class
Fixed costs don’t change with customer numbers, but they do need to be covered.
Imagine your monthly fixed costs look like this:
If you run 20 classes per month (4 weeks – 5 class per week), you can spread those fixed costs across each class.
£400 ÷ 20 classes = £20 fixed cost per class
Step 2: Add your direct class costs
These are the costs that only exist because the class is running.
For one class:
Total direct class costs: £30 per class
Step 3: Calculate the total cost of running one class
Combine both costs:
Total cost per class: £50
Step 4: Income per customer per class
Let’s say you charge:
Step 5: Find your break-even number of customers
Now divide the total class cost by the fee per child.
£50 ÷ £9 = 5.5 children
You can’t have half a child in class so you round up.
👉 Break-even point = 6 children in class
What this means in practice
This also means:
“Your Number”
Your business should support your life — not the other way around.
Working out your number helps you design a business that fits you.
Your number is the amount of money you need your business to bring into your household each month. It’s personal to you.
It depends on:
Instead of asking “How much could I earn?”, a better question is:
This approach turns business maths into a tool for designing your life, not a source of fear.
Common Mistakes
Some very common mistakes include:
None of these mean you’re bad at business – they just mean you haven’t been shown how it works yet.
Final Thoughts
You don’t need to be a finance expert to run a successful business.
You need:
Once you understand your numbers, fear is replaced with clarity. Having clarity leads to better decisions.
Are you interested in running a WOW franchise? If so, you can download a financial spreadsheet from the Pricing page. It will help you determine your own business numbers and work out if it’s the right business for you.
If you’d like more help, you can book a call with Amy by clicking the button below.
