After a 20% discount, the price of a piece of clothing is 850 yuan, what is the original price
一件衣服打八折后，售价为850元，那么原价为多少
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">850 / (4/5)</gadget>
<output>2_125/2 = around 1_062.5</output>

<result>2_125/2 = around 1_062.5</result>