The higher central parity of RMB against the US dollar means that the RMB exchange rate against the US dollar has risen, which is the appreciation of RMB, not "the appreciation of the US dollar against RMB". The rise of the RMB exchange rate against the US dollar means that the RMB appreciates against the US dollar and the US dollar depreciates against the RMB.

The middle price of the US dollar and the RMB is the same value, which is the middle price of the RMB. It is the most important reference index of spot inter-bank foreign exchange market and bank listed exchange rate, and it is also an important index to measure the value of a country's currency. Central parity of exchange rate = (spot foreign exchange buying price+spot foreign exchange selling price/cash) /2.

Generally speaking, the central parity of exchange rate is a data that changes with time. The People's Bank of China authorizes China Foreign Exchange Trading Center to announce the closing price of USD and other trading currencies against RMB in the inter-bank foreign exchange market on that day after the market closes every working day, as the middle price of the currency against RMB on the next working day.