A commodity is 80 yuan cheaper than the original price after a 25% discount. What is the price after the discount?
一种商品，打七五折后比原价便宜80元，打折后的价格是多少元．
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">80 / (1/4)</gadget>
<output>320</output>

<gadget id="calculator">320 - 80</gadget>
<output>240</output>

<result>240</result>