China Everbright Bank charges full penalty interest. That is to say, if you fail to pay off the bill in full this time, but only pay back part of it, even if the difference is only 1 yuan, then the bill will be Interest will be calculated on the entire amount. Therefore, although you have repaid part of your 4,457 yuan, you still have to calculate interest on the basis of 4,457 yuan, and the interest is 50,000 per day. And the calculation does not start from the end of the interest-free period, but from the day of consumption! In this way, if your debt accumulates for one year, it will be almost 18%.
In comparison, installment payment is of course much more cost-effective. For the December installment, the calculated interest (called handling fee by the bank) is about a little more than 7%. However, for installment payment, you need to ask the cashier to help you operate it on the POS machine when you swipe your card, or you can call the bank after swiping your card to request an installment payment, but you must submit it 3 days before the bill generation date. In your case, it is a bit late. .
Find a way to pay it back quickly!