The daily interest of 40,000 yuan is: 40,000 x12.464%/360 =13.85 yuan.
Before the expiration of the main contract, the interest you need to pay every day is 13.85 yuan. How many days will the total number of days be counted until your actual repayment date? If you pay back now, 65 days in advance, then your actual payment days are 300 days.
13.85X300=4 155 yuan. If you repay the loan immediately, that's the amount of interest you should pay. Everything is calculated in actual days.
If it is overdue, a penalty interest of 50% will be charged for the overdue part. That is, the overdue daily interest is 13.85X 1.5=20.78 yuan.
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