Aunt Li bought a jacket and a pair of trousers during a discount in a shopping mall. The total price was 544 yuan. The jacket was 30% off the list price, and the trousers were 20% off the list price. The top was 400 yuan. What is the price of the trousers? ?
商场打折促销时，李阿姨买了一件上衣和一条裤子，共用了544元，其中上衣按标价打七折，裤子按标价打八折，上衣的标价为400元，则裤子的标价是多少元？
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">400 * (7/10)</gadget>
<output>280</output>

<gadget id="calculator">544 - 280</gadget>
<output>264</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">264 / (4/5)</gadget>
<output>330</output>

<result>330</result>