Calculate the core business health metrics — gross and net margin, revenue per customer, customer acquisition cost and repeat rate — from a single set of figures.
Données vérifiées · July 2026
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Pulls together the KPIs most small and mid-sized businesses track month to month: profitability (gross and net margin), customer economics (revenue per customer, customer acquisition cost) and retention (repeat customer rate). Tracked consistently over time, these figures flag whether growth is being bought profitably — a business acquiring customers faster than it can serve or retain them will show it here before it shows up in the bank balance.
£150,000 revenue, £90,000 gross profit, £30,000 net profit, 500 customers and £5,000 marketing spend generating 50 new customers: a 20% net margin and £100 customer acquisition cost.
Enter revenue, gross profit and net profit for the period.
Enter the number of customers and marketing spend for the period.
Enter new customers acquired and repeat customers, plus average order value and total orders.
Review margins, customer acquisition cost and repeat rate together, not in isolation.
Last data update
July 7, 2026
Sources and references
CIMA — Performance measurement and KPI frameworks; ACCA Performance Management (PM), profitability and customer metrics.
The data in this calculator is updated regularly to reflect the latest official rates. When in doubt, consult the official sources listed above.
Leave marketing spend and new customers at zero if you can't isolate them — the calculator will still report margins, revenue per customer and repeat rate from the other figures, just without a customer acquisition cost.
Repeat rate here measures the share of this period's customers who have bought before, a simple point-in-time indicator — a full retention or churn analysis over cohorts would track the same customers across multiple periods.