clothing factory originally made a kind of children's clothing, each set of cloth was 2.2 meters. Now the cutting method has been improved, and each set can save 0.2 meters. The cloth used to make 600 sets of this kind of clothing in the past, how many sets can be made now?
一个服装厂原来做一种儿童服装，每套用布2.2米．现在改进了裁剪方法，每套节省0.2米．原来做600套这种服装所用的布，现在可以做多少套？
<gadget id="calculator">2.2 - 0.2</gadget>
<output>2</output>

<gadget id="calculator">600 / 2</gadget>
<output>300</output>

<gadget id="calculator">2.2 * 300</gadget>
<output>660</output>

<result>660</result>