Profitability ratios — common mistakes

In an exam, never just state the calculated ratio. You must interpret it in the context of the case study. For example, state 'The GPM has fallen from 40% to 35%', then explain what this means for the business, such as 'This suggests a squeeze on profits, possibly due to rising raw material costs mentioned in the text, which could impact the firm's ability to invest'. Always use the data to support your analysis.

ROCE is often compared to interest rate or cost of capital — ROCE should exceed borrowing cost for gearing to be beneficial.

Generally, yes, but context is crucial. A very high GPM might suggest a company is overpricing its products, which could harm sales volume and market share long-term. Similarly, an extremely high ROCE might be unsustainable or indicate underinvestment in new assets. Ratios must be compared against industry benchmarks and the company's own historical trends for a meaningful analysis.

Yes, this is a common scenario. It indicates that while the company is efficient at producing its goods or services and has a good pricing strategy (high GPM), it is struggling with high overhead costs. This could be due to excessive spending on administration, marketing, rent, or other non-production related expenses, which erodes the initial gross profit.

While GPM and OPM measure profitability relative to sales, ROCE measures profitability relative to the total long-term capital invested in the business. For investors who provide this capital (through shares and long-term loans), ROCE directly answers the question: 'How much profit is the business generating from the money I have invested?' It shows the 'return' on their capital, making it a fundamental measure of investment efficiency.