Unlimited buffet
Unlimited buffet is generally charged by person/person, and there is no limit to what you eat; There are also two situations here, one is to eat whatever you want, and some high-end restaurants will prepare and distribute dishes for customers. But overall, the service process of unlimited self-help is simple and the service cost is relatively low. However, how much customers have eaten and how much materials have been consumed cannot be counted. For the time being, the cost can only be calculated by "reverse extrusion method".
Zero buffet
A la carte buffet is what we offer our customers. In this way, the consumption of materials can be traced back to each document and the consumption of materials can be accurately calculated. But when a customer orders something, we need to get it ready and deliver it to him, which requires more waiters, more service costs and management costs-because more people will naturally increase management costs.