Below are divisional income statements for the north and south divisions of Lazy Day Chairs. Lazy Day Chairs Divisional Income Statements For the Year Ended December 31, 2015 Revenues South Division North Division $152,600 $175,800 Operating expenses 49.100 62.300 Income from operations before service department charges $103,500 $113.500 Less service department charges: Research and Development $12,800 $ 3.200 Purchasing 9,600 14,400 3.500 10.500 Advertising $25.900 $28.100 Total service department charges $ 77,600 $ 85,400 Income from operations Calculate the return on investment for each division. The South Division owns $208,600 of invested assets and the North Division owns $230,000 of invested assets. Which division utilizes its assets more efficiently? Show your work.