How many cans of Korean ginseng are there?

The canned Korean ginseng we buy in the market is divided into five grades: heaven, earth, good, cut and tail. The numbers written on the can represent the amount of Korean ginseng in the can, as shown in the picture.

For example, what is written on the can is 20, which means there are about 29 Korean ginseng in one pound (600 grams). Next, you need to look at the grams of Korean ginseng written on the can. If it is 300 grams, that is 29 divided by 2. There are about 29 Korean ginseng in the can. 14-15 pieces. The size of Korean ginseng can be inferred from this.