A product is sold for 300 yuan after a 25% discount. What is the original price?
某商品打七五折后300元出售，原价是多少元．
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">300 / (3/4)</gadget>
<output>400</output>

<result>400</result>