Lixin Machine Tool Factory produced 2,600 machine tools in March, which was 100 more than planned. By what percentage was it overfulfilled?
立新机床厂三月份生产机床2600台，比计划多生产100台，超额完成了百分之几？
<gadget id="calculator">2_600 - 100</gadget>
<output>2_500</output>

<gadget id="calculator">100 / 2_500</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>