The exchange rate of the Bank of China, which is the guiding price of the central bank, is 629.2.

The middle price of China Merchants Bank, like other banks, is the middle price of buying and selling cash. The cash selling price is 624. 17, the cash buying price is 62 1.67, and the median price is (624.17+621.67)/2 = 622.92.

It's best to compare the selling or buying prices. This is our exchange price.

Selling price means that banks sell dollars, while we do the opposite, buying, that is, converting RMB into dollars.

The buying price is that banks buy dollars and we sell them, that is, they convert dollars into RMB.

It can be seen from your picture that it is not the same time. Foreign exchange quotation is more than one price a day, which changes rapidly. It is not that different prices will appear at the same time. In the same bank, you can see different things at different times.

You also compared the selling or buying prices and found that there was little difference.

I hope the above answers can help you.