The following figure shows the daily interest rate of five ten thousandths, that is, 10000 is the daily interest of 5 yuan, and the interest after 365 days is 1825. Divided by 2 equals 9 12, which is the daily interest of the loan of 5000 yuan. Similar to the interest rate of credit cards. If you want to borrow it for one year, there should be a discount, about 0.048, about 4.8‰. The interest of 5000 yuan a year is about 487.5.