A credit card has a monthly rate of 1.45% and uses the average daily balance method for calculating interest. Here are some of the details in the June 1 June 30 itemized billing: June 1 Unpaid Balance: exist650 June 8: Purchase exist230 June 15: Payment exist2000 June 24: Purchase exist180 Last Day of the Billing Period: June 30 a. Find the interest due on the payment due date. b. Find the total balance owed on the last day of the billing period