Maritime Act Article 49

Where the shipper rescinds the contract and thus shall pay the full freight, any expenses therefore saved by the ship and three-quarters of the freight earned on account of other cargo shall be deducted therefrom.
中文原文 海商法第49條
託運人因解除契約,應付全部運費時,得扣除運送人因此減省費用之全部,及另裝貨物所得運費四分之三。

English translation for reference only; the Chinese text prevails. Not legal advice.