Answer:
22.50%
Step-by-step explanation:
The return on assets (ROA) ratio is a financial measure of how much income is earned per $1 invested by the company on assets. It is calculated by dividing net income by average total assets. Operating profit margin is the ratio of operating profit or net income to sales.
Given that Electric Autos had sales of $100 million and assets at the start of the year of $150 million. If its return on start-of-year assets was 15%,
15% = Net income/$150 million
Net income = $22.50 million
Operating profit margin
= $22.50 million/$100 million
= 0.225
= 22.50%