The turnover of Nanyang Hotel in September was 250,000 yuan, leaving 237,500 yuan after tax. What is the tax rate for this restaurant?
南阳饭店九月份的营业额为250000元，纳税后剩237500元．这个饭店是按怎样的税率纳税的？
<gadget id="calculator">250_000 - 237_500</gadget>
<output>12_500</output>

<gadget id="calculator">12_500 / 250_000</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>