Hi, how much RMB is the food on Jinli Street?

can you let me know the prices for snacks and a portion of food in the restaurant? also how much are drinks there, like mineral water, tea, coffee, milk, etc? also which foods are good and must try and which restaurant I must go?
and how much are the souvenirs (can u tell me the exact prices for popular ones, like shu embroidery)?
Thank you.