On the difference between red label and black label of goods sold by Wu.

The difference between the red label and the black label is that the red label can be bargained.

1, the red price tag means "clear bargain". Consumers can bargain with merchants on the "reference price" on the price tag until both buyers and sellers are satisfied. The black price tag means "clearly mark the price", which means "bite the price". Salespeople and consumers can no longer reduce prices or bargain.