百分比样式

例句：

1. 1. The company's profit margin is 20% of its revenue.
   公司的利润率是其收入的20%。
2. 2.The sales figure represents a 5% increase from last year.
   销售额比去年增长了5%。
3. 3. The cost of living in this city is 4% higher than the national average.
   这个城市的生活成本比全国平均水平高出4%。