A suit is sold at a 10% discount, and the price is 270 yuan. What is the original price?
一件西服打9折出售，售价是270元，原价是多少元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">270 / (9/10)</gadget>
<output>300</output>

<result>300</result>