A factory’s water bill was 2,500 yuan in April, and it saved 500 yuan in May compared with April. What percentage was the savings?
某工厂四月份水费是2500元，五月份比四月份节约500元，节约了百分之几？
<gadget id="calculator">500 / 2_500</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>