prorate
🇺🇸
/ˌprəʊˈreɪt/
🇬🇧
/ˌprəʊˈreɪt/
To divide a total amount into parts based on usage or time.
The rent will be prorated since you're moving in halfway through the month.
月中にお引越しになるため、家賃は割合計算されます。