ICBC, China Construction Bank, Agricultural Bank of China and Bank of China can do it. China Bank is better. You can go to the bank's website first and check the exchange rate before changing. If the amount is not large, you can go to the Bank of China and bring your ID card.

Look at the selling price of the bank, because he sells you foreign currency. It costs 682.63 yuan to exchange 100 dollars today. It costs 7.6743 yuan to exchange 100 yen.