Answer:
e.After-tax Operating Income / Total Capital Employed
Step-by-step explanation:
Returns on investments (ROI) is a financial ratio that measures how much profit is generated for every $1 invested by a company.
Mathematically, the formula for ROI
= Net Profit / Total Investment * 100
As such, where a net loss is made by a company, the ROI will be negative. The net income is the after-tax Operating Income while the total capital employed is equivalent to the total investment.