Let me explain briefly: for every dollar of foreign exchange reserves deposited in the national foreign exchange reserve vault, 6.64 yuan will be issued at the same time, and the issue price will be calculated according to the trading day.

If I am wrong, please ask the master to point out and correct me, so as not to accuse me of misleading people.

Update:

No matter where this 1 dollar comes from or who sells this 1 dollar to the state, the state purchases 1 dollar, that is, reserves 1 dollar, and obtains the equivalent RMB, that is, issues RMB equivalent to 1 dollar.

Thanks to years of encouraging exports and introducing foreign investors to invest in China, the company has gained a lot of US dollars. If it can't buy things in US dollars at home, it can only be sold at home or used for import and external payment. Exports exceed imports (China is a country with a trade surplus). In this way, the company keeps selling foreign exchange to the country, and the country keeps investing in RMB. Foreign exchange reserves are getting bigger and bigger, and more and more RMB is invested. Coupled with many factors, inflation is bound to occur.