Blackhawk Inc. arranged a $9,000,000 revolving credit agreement with a group of banks. The firm paid an annual commitment fee of 0.5% of the unused balance of the loan commitment. On the used potion of the revolver, it paid 0.5% above prime for the funds actually borrowed on a simple interest basis. The prime rate was 9% during the year. If the firm borrowed $6,000,000 immediately after the agreement was signed and repaid the loan at the end of one year, what was the total dollar annual cost of the revolver?