A product is 32 yuan after a 20% discount, how much is the original price.
一件商品打八折后是32元，原价多少元．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">32 / (4/5)</gadget>
<output>40</output>

<result>40</result>