Answer:
a. 9.15%
b. Please check the answer below.
Step-by-step explanation:
Solution a:
Net operating income for the current year = Sales - Variable cost - Controllable fixed costs
= $3,050,000 - $1,982,500 - $610,000 = $457,500
Average operating assets = $5,000,000
Return on investment = Net operating income / Average operating assets = $457,500 / $5,000,000 = 9.15%
Solution b:
Action 1:
Contribution margin ratio = ($3,050,000 - $1,982,500) / $3,050,000 = 35%
Increase in operaating income if sales increased by $300,000 = $300,000*35% = $105,000
New operating income = $457,500 + $105,000 = $562,500
Return on investment = $562,500 / $5,000,000 = 11.25%
Action 2:
New variable cost = $1,982,500 - $150,000 = $1,832,500
New net operating income = $3,050,000 - $1,832,500 - $610,000 = $607,500
New ROI = $607,500 / $5,000,000 = 12.15%
Action 3:
New average operating assets = $5,000,000*97% = $4,850,000
New ROI = $457,500 / $4,850,000 = 9.43%