chemical fertilizer factory produced 3,000 tons of cement in May, which was 600 tons more than planned, and how many percent exceeded the plan?
某化肥厂五月份生产3000吨水泥，比计划多生产600吨，超过计划的百分之几？
<gadget id="calculator">3_000 - 600</gadget>
<output>2_400</output>

<gadget id="calculator">600 / 2_400</gadget>
<output>1/4 = around 0.25</output>

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