Revenue gets attention. Expenses determine survival. Many businesses focus on increasing sales while quietly losing profitability through uncontrolled spending. The Expense Ratio Rule keeps growth profitable.
What You'll Learn
- What an expense ratio is and how to calculate it
- Why it determines profitability
- Healthy expense benchmarks by industry
- How to improve your ratios
What Is an Expense Ratio?
Expense Ratio = Total Expenses ÷ Revenue. It shows how much of every revenue dollar is consumed by costs. A ratio of 0.70 means 70 cents of every shilling earned goes to expenses. The lower the ratio, the higher the profitability.
Why the Expense Ratio Matters More Than Revenue
Two businesses with identical revenue can have wildly different profitability based on their expense ratios. A business earning KES 10M with a 0.90 ratio earns KES 1M profit. The same business at 0.70 earns KES 3M — three times as profitable.
Healthy Expense Benchmarks
Retail businesses: 70–80% expense ratio. Service businesses: 50–70%. Technology businesses: 40–60%. The key is to benchmark against your industry and track your trend over time. Improvement is more important than absolute numbers.
The Three Categories of Business Expenses
Fixed costs: rent, salaries, insurance — consistent regardless of revenue. Variable costs: materials, commissions — scale with revenue. Discretionary costs: marketing, training — manageable and strategic. Each category requires different management approaches.
How to Improve Your Expense Ratio
Audit every cost quarterly. Eliminate or renegotiate high fixed costs. Align variable costs to revenue through performance-based models. Set expense budgets as a percentage of revenue, not absolute amounts. Use the ratio as a KPI in management reviews.
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