For example, on April 28th, RMB 1 1,000 will be withdrawn, and the interest for one day will be paid in 0.5 yuan. If the billing date is 5th, interest will be paid on 5th for 8 days, that is, 0.5*8=4 yuan. However, you didn't make the repayment on May 5th, and the money you repaid on May 10, in addition to your interest income from May to May 10, 4 yuan interest generated on May 5th was still charged at five ten thousandths of interest until May 10. So monthly compound interest refers to the interest generated by 4 yuan.
I hope our answer will get your approval. In the future, you can join the official WeChat of Ping An Credit Card to experience a different micro-life.