Clothing store "May 1st" promotional activities, 20% off, Xiao Ming bought a coat, saving 8 yuan. How much did you pay for this coat?
服装店"五•一"搞促销活动，一律打八折，小明买了一件上衣，省了8元．这件上衣原来买多少元？
<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">8 / (1/5)</gadget>
<output>40</output>

<result>40</result>