The "N- 1" ordering mode has been popularized all over the country, and catering associations such as Xianning City, Hubei Province and Xinyang City, Henan Province have issued proposals one after another, advocating catering enterprises in their jurisdictions to promote the "N- 1" ordering mode, that is, N- 1 person ordering.

Not long after the introduction of "N- 1", Liaoning introduced the "N-2" ordering mode, that is, 10 guests can only order eight people's dishes, and when the dishes are not enough, they can increase them appropriately to prevent waste.

Some people think that ordering more dishes will make them look more atmospheric. As everyone knows, ordering too many dishes not only causes unnecessary waste, but also brings embarrassing trouble to the guests. Therefore, n+2 sorting mode is recommended.

N+2 is to add two dishes to the number of guests. For example, four people order six dishes, six people order eight dishes, and so on.