I need help with how would you figure out a food cost for various add-ons for juices? I have orange and carrot juice, 12 and 16 ounces, with have options to add like ginger, celery, apple, beet, etc. My experience has been in high-end restaurants with line by line menu items, so I have no experience in trying to figure out a cost to add 1, 2, or 3 items of various costs.
Would I take an average of the costs for say, the last year? I have looked at the menus for other juice bars and am not finding that kind of option usually listed. I'm having a hard time wrapping my head around this one. Thanks for any help!!