The sales, operating income, and invested assets for each division of Grosbeak Company are as follows: Sales Operating Income Invested Assets Division E Division F $5,000,000 $550,000 $2,400,000 4,800,000 Division G 7,000,000 860,000 860,000 2,500,000 2,900,000 a. Using the DuPont formula, determine the profit margin, investment turnover, and return on investment for each division. Round profit margin percentage to two decimal places, investment turnover to four decimal places and return on investment to one decimal place. Profit Margin Investment Turnover Division E Return on Investment b. Which division is the most profitable per dollar invested? Division F Division G