(3)For the purposes of calculating the Health Cess under this Chapter on the goods specified in the Fourth Schedule, where such duty is leviable at any percentage of its value, the value of such goods shall be calculated in the same manner as the value of goods is calculated for the purpose of customs duty under the provisions of section 14 of the Customs Act, 1962 (52 of 1962); (hereafter in this Chapter referred to as the Customs Act).