"Percentage" 可以用来表示百分比。这个词源自拉丁语 "per centum"，意思是“每百”。
例句：
What is the percentage of water in this bottle?
(这瓶瓶装水里有多少百分比的水？)
The percentage of people who passed the exam was 90%.
(通过考试的人的百分比是 90%)
Can you increase the font size by ten percent?
(你可以把字体大小增加 10% 吗？)