An adverb meaning 'comparatively' or 'relatively,' used to indicate that something is more or less so compared with something else.
今日は割合に暖かいから、コートはいらないかもしれない。
It's relatively warm today, so you might not need a coat.
彼の成績は割合に良かったが、もっと努力が必要だ。
His grades were comparatively good, but he still needs to work harder.
この店の料理は割合に安くて、味も悪くない。
The food at this restaurant is relatively cheap and not bad in taste.