Liz Raiborn, Inc., has the following financial results for the years 2016 through 2018 for its three regional divisions:

Problem Information

2016

Revenue

Southwest .......................................................................................... 14900

Midwest ............................................................................................. 6700

Southeast ............................................................................................ 12400

Total ................................................................................................. 34000

Net Operating Income

Southwest .......................................................................................... 1100

Midwest ............................................................................................ 1250

Southeast .......................................................................................... 1000

Total ............................................................................................... 3350

Average Total Assets

Southwest .......................................................................................... 14000

Midwest ............................................................................................ 4700

Southeast .......................................................................................... 5300

Total ............................................................................................... 24000

Requirements:

Calculate return on sales (ROS), asset turnover (AT), and ROI for each division and also for the company as a whole for each of the three years 2016, 2017, and 2018.