(1) The amount of duty actually paid on said articles to the United States as shown on a receipt from the U.S. Customs Service or by other documentation acceptable to the U.S. Customs Service officials in the Virgin Islands.
(2) The amount of duty that would be payable on said article to the United States based on the rates of duty on such articles shown in the tariff schedules of the United States, as amended (12 U.S.C. § 1202), and the value of such article when imported into the United States.