A peculiar child

Ren Xiaosu looked at the disintegrated packs of cigarettes and felt a pain in his heart. Based on the selling price of 20 yuan per cigarette at Wang Fugui's store, how much would the cigarettes in this shop be worth?

Moreover, Ren Xiaosu had estimated there to be at least five tobacco and liquor stores on this street.

Ren Xiaosu converted the prices and felt that humans from before The Cataclysm were really rich.

In his haste, Ren Xiaosu did not realize that tobacco was actually not a scarce commodity before The Cataclysm. He turned around and looked at the bottles of liquor that were placed on the shelves against the wall. As they were not sealed in plastic packaging, the liquor was gone. All the bottles here were empty.