Business was good a few days before the hot pot restaurant opened.

what you want to ask is why the hot pot restaurant was doing well a few days before it opened?

1. Hot pot restaurants located in areas with large traffic will attract more people and potential customers a few days before opening.

2. Active publicity activities before opening will attract more people to try.

3. The opening of a new store will arouse people's curiosity and they will come to explore and try it a few days before the opening.