The garment factory used to make a set of children's clothing, and it needed 2.2 meters of cloth. Now, the cutting method has been improved, and each set saves 0.2 meters of cloth. It used to make 1,200 sets of such clothes. How many sets should it make now?
服装厂原来做一套儿童服装，用布需要2.2米，现在改进了裁剪方法，每套节约布0.2米，原来做1200套这样的服装所用的布，现在要以做多少套？
<gadget id="calculator">2.2 - 0.2</gadget>
<output>2</output>

<gadget id="calculator">1_200 / 2</gadget>
<output>600</output>

<gadget id="calculator">2.2 * 600</gadget>
<output>1_320</output>

<result>1_320</result>