How much interest does CCB credit card owe for 90 thousand a month?
1350 yuan. According to the inquiry of CCB official website, as of June 2023, the overdue interest of CCB's credit cards was calculated on a daily basis, with a daily interest rate of 0.05%. The calculation formula is: overdue interest = overdue amount multiplied by overdue days multiplied by 0.05%. The overdue interest shall be collected on a daily basis, and the overdue interest for one month is 90,000 times 0.05% times 30 days = 1.350 yuan.