Malipo Panlong Cement Plant originally planned to produce 3,235 tons of cement for the whole year. As a result, 1785.43 tons were produced in the first half of the year, and 1838.65 tons were produced in the second half of the year. How many tons more than the original plan?
麻栗坡盘龙水泥厂原计划全年生产水泥3235吨．结果上半年生产了1785.43吨，下半年生产了1838.65吨．比原计划增产多少吨？
<gadget id="calculator">1_838.65 - 3_235</gadget>
<output>-1_396.35</output>

<gadget id="calculator">1_785.43 + (-1_396.35)</gadget>
<output>389.08</output>

<result>389.08</result>