百分比符号

例句：

1. 1.The company's revenue increased by 5% compared to last year.
   与去年相比，该公司的收入增长了5%。
2. 2.The cost of the project is approximately 30% of the total budget.
   该项目的成本约占总预算的30%。
3. 3.The sales figures for the quarter are up 10% from last year.
   该季度的销售数字比去年同期增长了10%。