A kind of electric appliance used to be priced at 1,000 yuan each, but now it is 200 yuan cheaper than before. How much cheaper is it?
一种电器，原来每台售价1000元，现在每台比原来便宜200元，便宜了百分之几？
<gadget id="calculator">200 / 1_000</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>