The big dealer in the currency circle said that he does not want his B price to be high. The higher the price, the greater the risk. So why the price of B you buy always falls back, because this is intentional by the big dealer. Let me explain why. There are mainly two reasons. 1. Cost. From 1 yuan to 2 yuan, it doubles. From 100 yuan to 200 yuan, it also doubles. Isn't it easier for him to pull the former? Doesn't it use less funds? 2. The lower the price, the easier it is to manipulate. Assuming the price is 1 cent, if you do 5 cents more, what can you find? If the price of 100 yuan is increased by 50 yuan, everyone can see it at a glance.