Answer:
Simple rate of return 19.92%
Step-by-step explanation:
Notice we are asked for the simple rate of return which is:
Δoperating income /investment
investment 738,000
We need to calculate the Δoperating income
change in operating income
Δsales 478,000
Δin cost 249,000
depreciation 82,000
Δoperaing income 147,000
Δoperating income /investment
147,000/738,000 = 0.19918699 = 19.92%