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$,,,,$$$,258,000,,,,],[$Net operating income,,,,$$,41,280,,$$$,55,575,],[$Average operating assets,$$,397,000,,,,,,,],[$Margin$,,8,\%,,$a$,\%,,15,\%$