Webcomic xkcd pointed out that many geographic profile maps are basically just population maps and therefore are essentially meaningless $.$ Now think back to the previous question. The implications are clear: if a market has placed more orders, it has incurred more costs since costs are a function of the quantity of items purchased So let's remove the effects of the number of orders placed within a market. You do this by dividing the costs for a market by the number of orders placed in the market $.$ Once you do that division and rank the markets from highest to lowest, which market is in $6$th place.