ad valorem

(in proportion to value) यथा मूल्य, मूल्यानुसार,मूल्यानुसारी (of a tax on property, etc.–levied according to assessed value यथामूल्य; of a tax on goods,etc.–imposed at a rate percent of the value as stated in invoice rather than as a specific sum for a given quantity or number मूल्यानुसार, मूल्यानुसारी)