Liz Raiborn Inc. has the following financial results for the years 2019 through 2021 for its three regional divisions: 2019 Southwest Midwest Southeast 14,475 21,575 25,575 6,775 6,275 6,575 12,57 12,875 Total $32,725 40,725 45,225 Net Operating Income Southwest Midwest Southeast 675$775 $925 1,125 2,075 $ 2,725 3,225 $13,575 $13,775 $16,375 825 1,175 Total Average Total Assets Southwest Midwest Southeast 4,275 3,775 3,775 Total S22,725 $22,725$25,325 Required: Calculate return on sales (ROS), asset turnover (AT), and return on investment (ROI) for each division and also for the firm as a whole for each of the three years 2019, 2020, and 2021. (Note: Due to rounding your percentages, the totals for the firm might not be the actual total of the individual divisions.) (Round "Asset turnover (AT)" answers to 3 decimal places and other answers to 1 decimal place.) 2019 2020 2021 Return on sales (ROS) Southwest Midwest Southeast Firm Asset turnover (AT) Southwest Midwest Southeast Firm Return on investment (ROI) Southwest Midwest Southeast Firm