Liz Raiborn Incorporated has the following financial results for the years 2022 through 2024 for its three regional divisions:

	2022	2023	2024
Revenue
Southwest	$ 14,450	$ 21,550	$ 25,550
Midwest	6,250	6,550	6,750
Southeast	11,950	12,550	12,850
Total	$ 32,650	$ 40,650	$ 45,150
Net Operating Income
Southwest	$ 650	$ 750	$ 900
Midwest	800	1,150	1,100
Southeast	550	750	1,150
Total	$ 2,000	$ 2,650	$ 3,150
Average Total Assets
Southwest	$ 13,550	$ 13,750	$ 16,350
Midwest	4,250	3,750	3,750
Southeast	4,850	5,150	5,150
Total	$22,650	$ 22,650	$ 25,250

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 2022, 2023, and 2024. (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.)