The unpaid balance at the start of a 28-day billing cycle was $953.17. A $6,000 purchase was made on the first day of the billing cycle and a $150 payment was credited to the account on day 21. How much interest will be charged at the end of the billing cycle? Assume that the annual interest rate on a credit card is 24.38% and interest is calculated by the average daily balance method. At the end of the billing cycle, $will be charged in interest. (Round to the nearest cent as needed.)