A family friend has asked your help in analyzing the operations of three anonymous companies operating in the same service sector industry. Supply the missing data in the table below: (Loss amounts should be indicated by a minus sign. Round your percentage answers to nearest whole percent.) Sales Net operating income Average operating assets Return on investment (ROI) Minimum required rate of return: Percentage Dollar amount Residual income A Company B C $ 9,480,000 $ 7,800,000 $ 331,000 $ 5,220,000 $ 3,160,000 $ 2,088,000 12 % 10 % % 10 % $ SA 397,200 % 16% 104,400