Div. Operating Income Inv. Assets a. Determine the missing items. Round return on investment, profit margin, and investment turnover answers to one decimal place. Sales Return on Inv. Profit Margin Invest. Turnover A $35,000 $200,000 % % 1.6 B $455,000 $284,375 16.0% % C $525,000 $73,500 % % 1.2 D $800,000 % 13.0% 2.5 E $250,000 % 16.0% 2.0 b. Which division is most profitable in terms of operating income? c. Which division is most profitable in terms of return on investment