Simple example:
1. Product sales quantity: the cost of buying 1000 units in a country will be lower than the cost of selling 100 units in a country.
2. Transportation cost: Land transportation is cheaper than sea transportation.
3. Place of purchase: It is cheaper to sell China's own products in China than to export them to the United States.
4. The product requirements are different. For example, products in the Asia-Pacific region are also labeled in Chinese, so the labor cost of labeling should be included in the price.
Think so much first, and I'll tell you when I think about it ~