After a piece of clothing is sold at a 40% discount, it is 200 yuan cheaper. How much is the original price?
一件衣服六折出售后，便宜了200元，原价多少元．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">200 / (2/5)</gadget>
<output>500</output>

<result>500</result>