After a 15% discount, the sales price of a product is 255 yuan. What is the original price?
一件商品打八五折后销售价是255元，原价是多少元．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">255 / (17/20)</gadget>
<output>300</output>

<result>300</result>