The fertilizer factory planned to produce 1,200 tons of fertilizers in October. In fact, 55% of the full-month plan was completed in the first half of the month, and 66% of the plan was completed in the second half of the month. By how many tons did the actual production in October exceed the monthly plan?
化肥厂十月份计划生产化肥1200吨，实际上半月完成了全月计划的55%，下半月完成了计划的66%．十月份实际产量超过全月计划多少吨？
<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">66 / 100</gadget>
<output>33/50 = around 0.66</output>

<gadget id="calculator">(33/50) - 1</gadget>
<output>-17/50 = around -0.34</output>

<gadget id="calculator">(11/20) + (-17/50)</gadget>
<output>21/100 = around 0.21</output>

<gadget id="calculator">1_200 * (21/100)</gadget>
<output>252</output>

<result>252</result>