How is return on invested capital used as an internal management tool?

Why is return on invested capital one of the most relevant measures of company performance? How do we use this measure in our analysis of financial statement?

please i need a long explanation for those two questions.

Faculty of Business Management & Globalization BBK3513 Financial Statement Analysis Individual Assignment - 60 % Submit to the lecturer in the class by 25 April 2016. Answer all questions. 1. How is return on invested capital used as an internal management tool? 2. Why is return on invested capital one of the most relevant measures of company performance? How do we use this measure in our analysis of financial statement? 3. Why is interest expense ignored when computing return on net operating assets (RNOA)? 4. Discuss the motivation for excluding \"nonproductive\" assets from invested capital when computing return. What circumstances justify excluding assets from invested capital? 5. Why must income used in computing return on invested capital be adjusted to reflect the capital base (denominator) used in the computation? 6. What is the purpose of measuring asset turnover for different asset categories? 7. What factors (limitations) enter into our evaluation of return on net operating assets? 8. How is the equity growth rate computed? What does it measure? 9. How do return on net operating assets and return on common differ? 10. What are the components of return on common shareholders' equity? components measure. What do the -End