RT-Mart planned to sell 1,600 battery cars last year, but actually sold 1,800 for the whole year. How many percent more did the actual sales exceed the plan?
大润发卖场去年计划销售电瓶车1600辆，实际全年销售了1800辆，实际的销售量比计划的多百分之几？
<gadget id="calculator">1_800 - 1_600</gadget>
<output>200</output>

<gadget id="calculator">200 / 1_600</gadget>
<output>1/8 = around 0.125</output>

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