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A family friend has asked for your help in analyzing the operations of three companies operating in the same service sector industry. Supply the missing data in the following table: Company A B Sales $ 400,000 $ $ 600,000 750,000 45,000 $ Operating income Average operating assets $ 160,000 $ 150,000 Return on investment 20 % 18 % % Minimum required rate of return: Percentage 15 % % 12 % Dollar amount $ 50,000 Residual income (loss) $ 6,000