Liz Raiborn Inc. has the following financial results for the years 2019 through 2021 for its three regional divisions: ze19 2020 2021 $14.775 6,575 12,275 $ 33,625 $ 21,875 6,875 12,875 $ 41,625 $ 25,875 7.075 13.175 $ 46,125 Revenue Southwest Midwest Southeast Total Net Operating Inconte Southwest Midwest Southeast Total Average Total Assets Southwest Midwest Southeast Total $ 975 1,125 875 $ 2,975 $ 1,075 1,475 1,075 $ 3,625 $ 1.225 1,425 1,475 $ 4,125 $ 13,875 4,575 5,175 $ 23,625 $ 14,075 4,075 5.475 $ 23,625 $ 16,675 4,075 5,475 $ 25,225 Required: Calculate return on sales (ROS), asset turnover (AT), and return on investment (ROI) for each division and also for the firm as a whol 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 decima place.) 2019 2020 2021 Return on sales (ROS) Southwest Midwest Southeast Firm % Assel turnover (AT) Southwest Midwest Southeast Firm Return on investment (ROI) Southwest Midwest Southeast Firm % % %