Investment Center Sales Net income Average invested assets Profit margin Investment turnover Return on investment A $ ? $ 508, 200 $1,540,000 6% ? ?% B $11,800,000 $ ? $ ? ? % 2.5 15% Use the information in the table above to compute each department's contribution to overhead (both in dollars and as a percent). (Round your final answers to 2 decimal places.) Profit Margin: Choose Numerator: 1 Choose Denominator: Profit Margin Investment Center Net income / = Profit margin 6.00% A B % Investment Turnover: Choose Numerator: 1 Choose Denominator: = Investment Turnover Investment Center = Investment turnover A B 2.50 Return on investment: Choose Numerator: 1 Choose Denominator: Return on investment Investment Center 1 = Return on investment . % B 15.00 %