Comparative data on three companies in the same service industry are given below:

Required:

$2.$ Fill in the missing information. $($Round the "Turnover" and "ROI" answers to $2$ decimal places.$)$

$\backslash$table$[[,$Company A$,$Company B$,$Company C$],[$Sales$,$$$,3,696,000,,$$$,1,782,000,,,,],[$Net operating income,$$,591,360,,$$$,213,840,,,,],[$Average operating assets,$$,1,760,000,,,,,$$$,3,180,000,],[$Margin$,,,\%,,8,\%,,8,\%$