percent coarser

例句：

1. 1. The company's profit margin is 20% of its sales.
   该公司的利润边际是其销售额的20%。
2. 2.The cost of living in this city is 5% higher than last year.
   这个城市的生活成本比去年高5%。
3. 3.The price increase is only a small percentage of the total cost.
   价格上涨只是总成本的一小部分。