Nougat is one of the classic scams in France both at markets and in some shops. You need to always check the kg price which legally needs to be displayed. They will usually write it in grams but the g is very tiny so that you are not aware of the expense until it is too late. Real producers are the answer to a fair price. You will have been buying from a shop that resells for a mass manufacturer. The good news is that you normally only get burned once.( Don't ask me how I know this).