The cost price is very low, about 20. 925 sterling silver is fake. The big pearl necklace is made of shell powder. Did you buy Jardine Matheson? As long as it's a door-to-door, whether it's an activity or something. Sales are all about making money, salesmen get commissions, managers at all levels get commissions, the head office earns more, and there are packaging freight. The cost price is 10- 20% of the goods. So be careful. If you have a three-pack card, you must see if it is the same brand as the product. If the three-package card is issued by a trading company, congratulations, you have been cheated.