Answer and Explanation:
The computation is shown below;
a. The return on investment is
= Margin turnover
= Net operating income ÷ sales × sales ÷ average operating assets
For Osaka
= $672,000 ÷ $9,600,000 × $9,600,000 ÷ $3,200,000
= 21%
For Yokohama
= $2,340,000 ÷ $2,600,000 × $2,600,000 ÷ $13,000,000
= 18%
2. The residual income is
= Net operating income - (average operating assets × rate of return)
For Osaka
= $672,000 - ($3,200,000 × 16%)
= $160,000
For yokohama
= $2,340,000 - ($13,000,000 × 16%)
= $260,000
