Guangming Garment Factory originally used 1.8m of cloth for a set of children's clothing. After improving the cutting method, each set saved 0.3m of cloth. Originally made 450 sets of cloth for children's clothing, how many sets can be made now?
光明服装厂原来做一套童装用布1.8m，改进裁剪方法后，每套节约用布0.3m．原来做450套童装的布，现在可以做多少套？
<gadget id="calculator">1.8 * 450</gadget>
<output>810</output>

<gadget id="calculator">1.8 - 0.3</gadget>
<output>1.5</output>

<gadget id="calculator">810 / 1.5</gadget>
<output>540</output>

<result>540</result>