A commodity is 300 yuan after a 15% discount. What is the original price?
一种商品八五折后是300元，原价是多少元．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">300 / (17/20)</gadget>
<output>6_000/17 = around 352.941176</output>

<result>6_000/17 = around 352.941176</result>