When a piece of clothing is sold at a 20% discount, it is 160 yuan cheaper. How much is the original price of the clothing?
一件衣服打八折出售时，便宜了160元，衣服原价多少元．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">160 / (1/5)</gadget>
<output>800</output>

<result>800</result>