Most business owners track numbers in their business. The problem is that many track the easy numbers, not the important ones.
Turnover is the classic example. It’s visible, easy to measure and easy to talk about. But turnover alone doesn’t tell you whether your business is actually performing well.
If you want to run a stronger, more profitable business you need to focus on the Key Performance Indicators (KPIs) that really drive results.
Three of the most useful KPIs we encourage business owners to understand properly are gross profit, debtor days and productivity.
Let’s look at why they matter.
1. Gross Profit – The Health of Your Work
Gross profit shows how much money is left after paying the direct cost of delivering your product or service. It’s one of the clearest indicators of whether your pricing and costs are under control.
A simple example:
- Sales: £100,000
- Direct costs (materials, subcontractors, etc.): £60,000
- Gross profit: £40,000 (40%)
If your gross profit is falling, something is usually wrong:
- Prices may be too low
- Costs may be rising
- Jobs may be taking longer than expected
Many businesses don’t track gross profit properly. They simply look at the bank balance or the sales figure. That can hide problems for months.
Gross profit tells you whether the work you’re doing is actually worth doing.
2. Debtor Days – How Fast You Get Paid
Debtor days measure how long it typically takes customers to pay you after you’ve issued an invoice.
Many businesses assume their customers pay within their agreed terms, but when they actually look at the numbers, the reality can be very different.
For example, you might issue invoices on 30-day terms, but in practice customers may be paying closer to 45 or even 60 days.
That gap can quietly create problems.
When customers take longer to pay than expected, it can lead to:
- Cash flow pressure
- Chasing payments more often than you’d like
- Difficulty planning for tax bills or supplier payments
And the frustrating thing is that the business may still look busy and profitable on paper.
Even a small improvement in how quickly invoices are paid can make a noticeable difference to cash flow. Money that is currently tied up in unpaid invoices could instead be available to invest in the business, pay suppliers on time or simply reduce financial stress.
That’s why keeping an eye on how quickly customers pay is such an important KPI for many owner-managed businesses.
3. Productivity – Are Your Team Members Generating Value?
Productivity measures how effectively your team members generate revenue.
A simple version is:
Revenue per team member
Example:
- Turnover: £1,200,000
- 12 team members
Revenue per team member = £100,000
If you track this over time, you can see whether the business is becoming more efficient or less.
Falling productivity may indicate:
- Too much downtime
- Poor systems
- Unclear roles
- Overstaffing
- Pricing issues
Improving productivity often doesn’t require working harder. It usually comes from better systems, clearer processes and better decision making.
Need Help Identifying the Right KPIs?
If you’d like help understanding the key numbers in your business, GreenStones would be delighted to help.
We regularly work with owner-managed businesses to review their figures, identify the KPIs that really matter and help turn those insights into better decisions.
Call GreenStones on 01733 371180 or email advice@greenstones.co.uk
to book a review meeting with the team and start getting clearer insight into your business performance.
Because the right numbers can change everything.