clothing factory originally made a set of children's clothing, but did not use cloth 2.2 meters. After improving the cutting, each set saves 0.2 meters of cloth. How many sets can be made of the cloth used to make 600 sets of clothing?
一个服装厂原来做一套儿童服装，没套用布2.2米．改进裁剪后，每套节省布0.2米，原来做600套服装所用得布，现在可以做多少套？
<gadget id="calculator">600 * 2.2</gadget>
<output>1_320</output>

<gadget id="calculator">2.2 - 0.2</gadget>
<output>2</output>

<gadget id="calculator">1_320 / 2</gadget>
<output>660</output>

<result>660</result>