How much is the annual fee for Bank of Communications credit card above 500 yuan?
500 yuan charges 43.2 yuan a year. Official website, Bank of Communications, inquired that the rate for 500 yuan and above is 0.72% per month, and the conversion percentage is 0.0072,500 times 0.0072 equals 3.6, and for 3.6 yuan for one month, 3.6 times 12 equals 43.2 yuan.