Alex Chunn Inc. has the following financial data for 2019 for its three regional divisions: Historical Cost Current Cost RegionOperating IncomeNet Book ValueGross Book Value Replacement CostLiquidation Value North Atlantic$65,000 $250,000 $450,000 $990,000 $350,000 Mid Atlantic 40,000 290,000 310,000 380,000 445,000 South Atlantic 30,000 100,000 180,000 650,000 980,000 Required: a. Calculate return on sales (ROS) for each division for 2019. The sales in the North Atlantic, Mid Atlantic, and South Atlantic regions are $2,350,000, $1,450,000, and $500,000, respectively. b. Calculate asset turnover (AT) and return on investment (ROI) for each of the four measures of investment.