A bag of Leshi potato chips is 40g, one bag is about 15~20 pieces, and one piece is about 2g~3g. Potato chips are fried from potatoes, the density of which is about 1.0- 1.2 g cubic centimeter. After frying, the density is smaller than the original one, which is almost 0 .9~ 1g per cubic centimeter. When they are the same volume, the density of potatoes is higher than that of potato chips.