Generally, there are priced dishes every day. For example, one dish is on sale this week, and another dish is next week, that is, a special dish is fixed every week.

The specials are mainly special dishes, because they attract people, and they also advertise and sell themselves by the way. If it is a common dish, it is not attractive enough, unless it is a big dish, which will be very affordable at a special price.

as for the price, it's up to you. if you can afford it, you can only charge the cost price. The key is to be significantly cheaper than similar dishes on the market.

If the special dishes only charge the cost price, they can be limited, for example, only one serving per table, or how much you have to spend to enjoy the special dishes. However, if it is not the cost price, but it is lower than the market price, but there is still money to make, there is no limit, after all, it can drive other consumption.