Provide the missing data in the following table for a distributor of martial arts products: Note: Enter "Turnover" and "ROI" answers to $1$ decimal place.

$\backslash$table$[[,$Division$],[$Alpha$,$Bravo,Charlie$],[$Sales$,,,$$ $307,500,,],[$Net operating income,,,$ $30,750,,,52,200,],[$Average operating assets,$ $428,000,,,,,,],[$Margin$,5,\%,,\%,,9,\%],[$Turnover$,5\mathrm{.}0,,,,,,],[$Return on investment $($ROI$),,\%,25\mathrm{.}0,\%,,18\mathrm{.}0,\%]]$