Lantian Garment Factory planned to process 5,400 women's suits in March, but it was completed in the first half of the month (5/9), and in the second half of the month (2/3). How many more women's suits were processed this month than originally planned?
蓝天服装厂3月份计划加工女西服5400件，结果上半月完成了(5/9)，下半月完成了(2/3)，这个月比原计划多加工女西服多少件？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">5_400 * (5/9)</gadget>
<output>3_000</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">5_400 * (2/3)</gadget>
<output>3_600</output>

<gadget id="calculator">3_600 - 5_400</gadget>
<output>-1_800</output>

<gadget id="calculator">3_000 + (-1_800)</gadget>
<output>1_200</output>

<result>1_200</result>