Jane Doe is a private company which a management accountant is analyzing its performance. So it is trying to look at different components that are distributing to its success. The tests he wants to carry out are the following using the table below:

$ Current liabilities 4500 Notes payable 25600 Equity 150000 Personal car 15000 Tax rate 30% Net income 19500 Sales 56200 Cost of goods sold 31000 Operating Expenses 9780 Interest on debt 8% REQUIRED 1. Calculate interest expense, tax and EBIT 2. Calculate the operating assets of the company. 3. What are the profit margin and the asset turnover of the company? 4. Using Du Pont analysis, calculate the ROI of the company

5. What are the major criticisms directed towards the use of Return on Investment.