N-COUNT [num NOUN]百分之… You use per cent to talk about amounts. For example, if an amount is 10 per cent (10%) of a larger amount, it is equal to 10 hundredths of the larger amount. 百分之…
20 to 40 per cent of the voters are undecided. [+ of]
20%到40%的选民还犹豫不决。
We aim to increase sales by 10 per cent.
我们的目标是将销售额提高10%。
The area has an unemployment level of 40 per cent.
该地区失业率达40%。
Per cent is also an adjective.
There has been a ten per cent increase in the number of new students arriving at polytechnics this year.
今年,理工学院的新生入学人数增加了10%。
Per cent is also an adverb.
...its prediction that house prices will fall 5 per cent over the year.