The garment factory is going to make a batch of shirts. Originally, each piece used 2.2 meters of cloth, and it could make 800 pieces. After improving the technology, it now saves 0.2 meters of cloth per piece. How many pieces can it make now?
服装厂准备制作一批衬衫，原来每件用布2.2米，可以做800件，改进技术后，现在比原来每件节省用布0.2米，现在能做多少件？
<gadget id="calculator">2.2 * 800</gadget>
<output>1_760</output>

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

<gadget id="calculator">1_760 / 2</gadget>
<output>880</output>

<result>880</result>