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Financial Literacy Tips

Financial Literacy for Entrepreneurs: 7 Numbers You Should Understand

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The Three Statements Behind Every Number

Before looking at individual figures, it helps to know where they come from. Every business number lives in one of three financial statements.

The Profit & Loss Account

Shows what you earned and what it cost to earn it over a period — usually a month or a year. Read it from the top: sales, then cost of sales, then overheads, ending with net profit.

Answers
Are we profitable?
Period
Month, quarter or year
Watch
Gross and net margin
Common trap
Profit is not cash

Tip: Compare each month with the same month last year, not just the previous month — it removes seasonal noise.

The 7 Numbers

Seven Numbers Every Owner Should Know

Each number comes with a simple formula and a practical tip. Open one at a time and try it with your own figures.

0Key numbers
0Finance degrees needed

The total value of sales before any costs are deducted.

Revenue = Units sold × Price

Tip: track revenue by product or customer group, not just in total — it shows where growth really comes from.

What is left after the direct costs of making or delivering your product or service.

Gross margin % = (Revenue − Cost of sales) ÷ Revenue × 100

Tip: a falling gross margin is often the earliest sign that prices need reviewing.

What remains after all costs, including overheads, have been paid.

Net profit = Gross profit − Overheads

Tip: review overheads as a percentage of revenue — it should fall as you grow.

Mark-up is added to cost; margin is a share of the selling price. They are not the same, and confusing them leads to under-pricing.

A 50% mark-up = a 33% margin

Tip: always set prices from the margin you need, not the mark-up you are used to.

The level of sales at which you cover all your costs — no profit, no loss.

Break-even sales = Fixed costs ÷ Gross margin %

Tip: recalculate break-even before any major new cost, such as a hire or a new lease.

How many months the business could keep going on its current cash if no new money came in.

Runway (months) = Cash in bank ÷ Average monthly net outflow

Tip: for businesses that are not yet profitable, this may be the single most important number to watch.

On average, how long customers take to pay you.

Debtor days = Trade debtors ÷ Annual credit sales × 365

Tip: if debtor days are higher than your payment terms, tighten your credit control.

Common Mistakes to Avoid

  • Treating the bank balance as profit
  • Confusing mark-up with margin when pricing
  • Only looking at the numbers once a year
  • Forgetting VAT is not your money
  • Leaving your own pay out of the costs

Good Habits to Build

  • Check your key numbers every month
  • Ask your accountant to explain one figure each meeting
  • Know your break-even before big decisions
  • Compare months year on year
  • Learn a little, often — ten minutes a week

This article is general information to help you think about your business finances. It is not regulated financial, tax or legal advice. For decisions specific to your situation, speak to a suitably qualified professional. See our Disclaimer.

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