It is necessary to erect a 7,200-meter-long cable. It is planned to complete the task in 12 days, but the actual task is completed in 9 days. How many meters are actually erected every day compared to the plan?
要架一条7200米长的电缆，计划12天完成任务，实际9天就完成任务，实际每天比计划每天多架设多少米？
<gadget id="calculator">7_200 / 9</gadget>
<output>800</output>

<gadget id="calculator">7_200 / 12</gadget>
<output>600</output>

<gadget id="calculator">800 - 600</gadget>
<output>200</output>

<result>200</result>