How can Jiuxitang Miaobang Positive Plaster make so many people crazy? Seek an answer

The agent takes the goods at the price of more per sticker in 3 yuan and sells them at per sticker 18 yuan. The ex-factory price is not clear. Don't ask me how I know. Someone once gave me a lecture and asked me to be an agent. At that time, I wondered why they wanted to tell others in a big way how violent it was, and why money-making industries should not be done secretly. Once I asked them how much the plaster was. They said, it's not that difficult. You can find one or two more agents to make enough money for you. They call this model: lying to make money.