then there shall be imposed upon such merchandise an antidumping duty, in addition to any other duty imposed, in an amount equal to the amount by which the normal value exceeds the export price (or the constructed export price) for the merchandise. For purposes of this section and section
1673d
(b)(1) of this title, a reference to the sale of foreign merchandise includes the entering into of any leasing arrangement regarding the merchandise that is equivalent to the sale of the merchandise.