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. Do not round your intermediate calculations.) Sales Net operating income Average operating assets Return on investment (ROI) Company A Company B $ 320,000 $ 770,000 $ Company C 670,000 $ 23,550 $ 49,000 $ 157,000 $ 306,250 $ 145,000 15 % 16 % % Minimum required rate of return: Percentage 12 % 18 % 11 % Dollar amount $ 18,840 S 54,000 Residual income $ 4,710 $ 7,000