A tailor estimates that 60,000 special zippers will be used in the manufacture of mens jackets during the next year. A zipper supplier has quoted a price of $.60 per zipper. The tailor would prefer to purchase 5,000 units per month, but the supplier is unable to guarantee this delivery schedule. To ensure availability of these zippers, the tailor is considering the purchase of all 60,000 units at the beginning of the year. Assuming the tailor can invest cash at 8%, the tailors opportunity cost of purchasing the 60,000 units at the beginning of the year is