1. First calculate the daily deposit amount: the daily deposit amount is calculated every 24 hours, and the discontinuous deposit amount is not calculated. For example, you take100000, withdraw it on the same day, do this every day, and finally no one will be there.

2. Calculation of the average daily deposit amount in a specific period: after the average daily deposit amount in a specific period is accumulated, it is obtained by arithmetic average. The credit card flow of China Bank is calculated as follows.