Ms. Li's billing date is 15 every month, and the due repayment date is 5 every month.

The statement printed by our bank for Ms. Li on April 65438+5, 2005 includes all her transactions from March 65438+6, 2006 to April 65438+5, 2005. Ms. Li has a transaction in the current billing cycle. On March 25th, the merchant spent 3,000 yuan, and the "minimum repayment amount" was 150 yuan. Under different repayment conditions, Ms. Li's revolving interest on May 15 is as follows:

If Ms. Li repays RMB 3,000 in full on May 5, the circulating interest in the statement of May 15 will be 0. If Ms. Li only pays the minimum repayment amount 150 yuan on May 5th, the revolving interest on the statement on May 6th at 5438+05 is equal to 77. 18 yuan.

The specific calculation is as follows:

3,000 yuan ×0.05%×4 1 day (March 25th to May 4th) = 6 1.5 yuan.

(3000- 150) Yuan× 0.05 %×11day (May 5 to May 15) = 15.68 Yuan.

Cyclic interest = 6 1.5 yuan+15.68 yuan = 77. 18 yuan.