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 (Do not round intermediate calculations. Round all your final answers to the nearest whole number. Negative amounts should be indicated by a minus sign. Omit the "$" and "%" signs in your response): Company A B C Sales $350,000 $830,000 $600,000 Net operating income $ ? $50,000 $ ? Average operating assets $163,000 $ ? $153,000 Return on investment (ROI) 19% 17% % ? Minimum required rate of return: Percentage 17% % ? 15% Dollar amount $ ? $42,000 $ ? Residual income $ ? $ ? $8,000