Finance Calculator
Business Growth Rate Calculator
Calculate year-on-year revenue and profit growth rates. Understand how your business momentum compares and what lenders look for in growth trajectories.
Enter your period figures
How is business growth rate calculated?
Business growth rate measures the percentage change between two periods. It is most commonly applied to revenue, but the same formula works for profit, customer numbers, or any comparable metric.
Growth Rate (%) = ((Current Period − Previous Period) ÷ Previous Period) × 100
For example, if previous period revenue was £800,000 and current period revenue is £960,000, the growth rate is ((960,000 − 800,000) ÷ 800,000) × 100 = 20.0%.
Positive values indicate growth; negative values indicate decline. The same formula applies to profit growth when both period profits are provided.
Assumptions and caveats
- •Periods should be of equal length (e.g. year vs year, quarter vs quarter) for a meaningful comparison.
- •Growth rate from a very small base can produce misleadingly high percentages.
- •Acquisitions or disposals can distort organic growth — consider adjusting for these.
- •Inflation can make nominal revenue growth appear stronger than real growth.
- •This calculator does not account for compound annual growth rate (CAGR) over multiple periods.
Frequently asked questions
Business growth rate is calculated by taking the difference between the current period value and the previous period value, dividing by the previous period value, and multiplying by 100 to express it as a percentage. The formula is: Growth Rate = ((Current − Previous) / Previous) × 100.
Growth rates vary by industry and business maturity. Generally, above 25% year-on-year revenue growth is considered high growth, 10–25% is strong, 5–10% is moderate, 0–5% is modest, and negative growth indicates decline. Start-ups may target higher rates, while mature businesses may focus on steady, sustainable growth.
No. Revenue growth can be negative, indicating the business has earned less than the previous period. This can happen due to market conditions, customer losses, seasonal factors, or strategic decisions such as exiting low-margin product lines. Negative revenue growth is not always a sign of failure — context matters.
Lenders view consistent, sustainable growth positively because it indicates the business can service increasing levels of debt. However, very rapid growth can also raise concerns about working capital strain, overtrading, or management capacity. Lenders look at both the rate and quality of growth.
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