It aims to increase the percentage of elementary schools that offer outdoor play time.

VOA: special.2010.06.07

The return, of course, in any given time period is the percentage increase in the portfolio; or, it could be a negative number, it could be a decrease.

当然了，收益率是一定时间内,投资组合的增长率;,也可能是一个负数，表示负增长。

耶鲁公开课 - 金融市场课程节选

The study found a big increase in the percentage of married women who earn more money than their husbands.

VOA: special.2010.02.19

That was eight percent higher than the year before, the largest percentage increase since nineteen eighty.

VOA: special.2009.11.26