You can ask for a table of 400 or 500, so you don't have to worry about food. The chef will definitely arrange delicious food for you, both hot and cold. The rest is used to buy wine. You can leave 50 for the staple food. The staple food is generally around 5 yuan. Of course, it mainly depends on whether the place you go is high or not. It's best to buy drinks outside, because hotels sell them very expensive.