TASK DEFINITION: In this task, you are given a sentence in the English language and your task is to convert it into the Japanese language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: Meanwhile, the underlying rate of RPI increased from 3.8% to 4.6% over the same period.

SOLUTION: 一方、RPＩの潜在的な率も同じ期間に３．８％から４．６％に上がった。

PROBLEM: The suit is for more than US$750 million (£528M) — about half of the estimated proceeds from Marvel's movies.

SOLUTION: 訴訟額は7億5000万米ドル(5億2800万ユーロ)以上であり、これはマーベルの映画の収入見積額のおよそ半分に値する。

PROBLEM: Scientology staff members told all three that they should buy a course to handle psychological issues.

SOLUTION:
サイエントロジーのスタッフメンバーは、精神的な問題を扱うためにコースを買わなければならないと3人すべてに話した。