Ratio
Percentage, Comparatively, Fairly
adverb, noun
Divide something into its parts and then join them back together, and you'll be able to see each little ratio or percentage of the whole. Imagine a whole thing neatly separated into its individual parts, making them visible but not changing the thing as a whole.
割合 usually refers to the ratio of a certain part when compared to the whole, often expressed as a percentage. When used this way it's similar to 比率, but 割合 is more common in everyday language.
Note that 割合 can also be used as an adverb, where it means comparatively or fairly.
This word uses the kun'yomi readings for both kanji. You've learned them both already, so you should be able to read this already!
出席者の割合は80%だった。
The ratio of people who attended was eighty percent.
その言葉を使ってる人の割合は、年配の人がほとんどだと思うよ。
I think most of the people who use that term are elderly people.
ワニカニユーザーの男女の割合を教えてください。
Please tell me the ratio of boys to girls among WaniKani users.
もっと長引くかと思ってたけど、割合早く終わったね。
I thought it was going to take longer, but it was over relatively quickly.
日本では、蕎麦粉の割合が100%の蕎麦を十割り蕎麦と呼びます。
In Japan, noodles that contain one hundred percent buckwheat flour are called jūwari soba.