The Rosewood Corporation established a line of credit with a local bank. The maximum amount that can be borrowed under the terms of the agreement is $500,000 at a rate of 10 percent. A compensating balance averaging 15 percent of the loan is required. Prior to the agreement, Rosewood had maintained an account at the bank averaging $25,000. Any additional funds needed for the compensating balance will also have to be borrowed at the 10 percent rate. If the firm needs $280,000 for 6 months, what is the annual cost of the loan?