Problem 5-31 Calculating Interest Expense [LO 4] You receive a credit card application from Shady Banks Savings and Loan offering an introductory rate of 3.1 percent per year, compounded monthly for the first six months, increasing thereafter to 18 percent compounded monthly Required: Assuming you transfer the $15,000 balance from your existing credit card and make no subsequent payments, how much interest will you owe at the end of the first year? (Enter rounded answer as directed, but do not use rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).) Interest owed