What does "food cost" mean? It's clear in English, but when the English words are used in a Polish text, they must mean something slightly special, because otherwise you would say "koszt jedzenia" - which in turn means I'm not sure if the Polish-English has been correctly translated into English as, of course, "food cost". Not that I really have any option but to leave it - there's enough to correct in there anyway, Marta!