The garment factory used to use 2.2 meters of cloth for each set of clothes. After improving the cutting method, each set now saves 0.2 meters. The cloth used to make 180 sets of clothes, how many sets can be made now?
服装厂原来做衣服每套用布2.2米，改进裁剪方法后，现在每套节省0.2米，原来做180套服装用的布，现在可做多少套？
<gadget id="calculator">2.2 * 180</gadget>
<output>396</output>

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

<gadget id="calculator">396 / 2</gadget>
<output>198</output>

<result>198</result>