percent of mare bred producting foal

例句：

1. 1.The company's profit margin is 5 percent of its revenue.
   该公司的利润边际是其收入的5%。
2. 2. The cost of living in this area is 3 percent higher than the national average.
   这个地区的生活成本比全国平均水平高出3%。
3. 3.The new policy will affect 90 percent of the population.
   这项新政策将影响90%的人口。