At least 300 sets of tableware should be prepared. If it's the same as others, it's basically ordinary tableware with little investment. If you want to be an ordinary person, you should negotiate with them. If you bring your own, you can prepare 300 sets at the beginning. If business is good in the future, it can be increased. You don't have time to clean up the dishes at dinner time. If you feel that you have time to clean up, you can decide according to the actual situation and refer to your own opinions.