Related topics: Finance
pro·rate /prəʊˈreɪt $ proʊ-/ verb [transitiveT] American EnglishAmEBFCOUNT/CALCULATE to calculate a charge, price etc according to the actual amount of service received rather than by a standard sum 按实际接受的服务计算〔价钱等〕n The costs should be prorated.
n Grammar Prorate is usually passive.