A ratio is only as comparable as the definitions under it. Net debt, EBITDA and invested capital are each computed in more than one way, and the choice moves the result. These articles give each ratio's formula, a worked example and the definition choices to check before two companies are set side by side.
Financial ratios
Financial ratiosBP published the best 2025 ROCE of the four oil majors, 13.9%. On reported profit and one capital base it is 3.7%, the lowest. What changes, and why.
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