Master Wang processes a batch of parts. The original plan is to process 125 parts per day, which can be completed in 16 days. Actually process 200 per day, how many days earlier than the original plan?
王师傅加工一批零件，原计划每天加工125个，16天可以加工完．实际每天加工200个，这样比原计划提前几天完成？
<gadget id="calculator">16 / 200</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">125 * (2/25)</gadget>
<output>10</output>

<gadget id="calculator">16 - 10</gadget>
<output>6</output>

<result>6</result>