A cement factory produced 250 tons of cement in October, which was 50 tons more than planned. By what percentage did it exceed the plan in October?
某水泥厂10月份生产水泥250吨，超过计划50吨，十月份超过计划百分之几？
<gadget id="calculator">250 - 50</gadget>
<output>200</output>

<gadget id="calculator">50 / 200</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>