The sales, income from operations, and invested assets for each division of Garner Company are as follows: Income from Invested Sales Operations Assets Division E $3,000,000 $470,000 $2,500,000 Division F 3,600,000 430,000 2,400,000 Division G 6,000,000 560,000 3,000,000 (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. (b) Which is (are) the most profitable per dollar invested