A piece of clothing is sold at a 10% discount, and now each piece sells for 72 yuan. How much is the original price of this piece of clothing?
一件衣服打九折出售，现在每件卖72元，这件衣服原价多少元？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">72 / (9/10)</gadget>
<output>80</output>

<result>80</result>