Economics
posted by Lisa on .
A clinic has $1 million in revenues and $950,000 in costs. What is its operating margin? My answer is 5%
However the second question is if the clinic invested $400,000. What is the return on investment and is it adequate. Not sure how I calculate that. Would I take the 5% of $400,000

10.3 A laboratory has $4.2 million in revenues and $3.85 million in costs. What is its operating margin?