A company completed 61% of the annual sales plan in the first half of 2012, please write down this percentage. What percentage of the annual sales plan is left unfinished?
某公司2012年上半年完成全年销售计划的百分之六十一，请你写出这个百分数．还剩全年销售计划的百分之几没有完成？
<gadget id="calculator">61 / 100</gadget>
<output>61/100 = around 0.61</output>

<gadget id="calculator">1 - (61/100)</gadget>
<output>39/100 = around 0.39</output>

<result>39/100 = around 0.39</result>