21. Interpreting financial ratios (S29.6) Here are some data for five companies in the same industry:

Company Code A B C D E EBIT 10 30 100 −3 80 Interest expense 5 15 50 2 1 You have been asked to calculate a measure of times-interest-earned for the industry. Discuss the possible ways that you might calculate such a measure. Does changing the method of calculation make a significant difference to the end result?