A coat is sold for 200 yuan after a 20% discount. What is the original price of this coat?
一件上衣打八折后卖200元，这件上衣原价是多少元．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">200 / (4/5)</gadget>
<output>250</output>

<result>250</result>