A factory actually produced 225 machine tools in March, 25 more than the original plan. What percentage increase in production in March?
某厂三月份实际生产机床225台，比原计划多生产25台，三月份增产百分之几？
<gadget id="calculator">225 - 25</gadget>
<output>200</output>

<gadget id="calculator">25 / 200</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>