The sales, income from operations, and invested assets for each division of Jamieson Company are as follows:
Sales Income From Operations Invested Assets
Division E $4,000,000 $550,000 $2,400,000
Division F 4,800,000 760,000 2,500,000
Division G 7,000,000 860,000 2,800,000
(a) Using the expanded expression, determine the profit margin, investment turnover, and rate of return on investment for each division. Round to one decimal place for the profit margin.
(b) Which is (are) the most profitable per dollar invested?