We're right there with Large: about one SB person for every 50 thru the door. If we know it'll be a sell-out (cheap night, and titles with the words " tiger, dragon, crouching, hidding"), we have a crowd control person. A charming young woman who people are nice to. Me, at 6"3" and 240#, seem to be the target of most of the middle-aged women's ire -- especially when they don't get a ticket. so, we throw the cute one to the wolves.
you need to weigh wages against profit(well, duh). How many people are walking away because the bar is a zoo? We sell tickets from the snack bar and that keeps the ticket seller handling the $ while the SB help do food. Snack Bar sales dipped when we opened a box office at the front door. we promptly got rid of that! i think the only regualtions reguarding the number of staff are the rules of supply and demand.