pls check if its correct

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 and other amounts to whole dollars.) Company A B C Sales $ 440,000 $ 800,000 $ 500,000 Net operating income 34,960 45,000 29,000 Average operating assets 152,000 $ 236,842 $ 150,000 Return on investment (ROI) 23 % 19 % 3 % Minimum required rate of return: Percentage 12 % 24 % 14 % Dollar amount 18,240 57,000 21,000 Residual income $ 16,720 $ 8,000 8.000