A garment factory used to use 2.1m of cloth to make a set of children's clothes, but now it has improved the cutting method, and each set saves 0.1m compared to the original one. Originally made 500 sets of children's clothing cloth, how many sets of children's clothing can be made now?
某服装厂原来做一套童装要用布2.1m，现在改进了裁剪方法，每套比原来节约0.1m．原来做500套童装的布，现在可以做多少套童装？
<gadget id="calculator">2.1 * 500</gadget>
<output>1_050</output>

<gadget id="calculator">2.1 - 0.1</gadget>
<output>2</output>

<gadget id="calculator">1_050 / 2</gadget>
<output>525</output>

<result>525</result>