A clothing store sells a total of 80 pairs of trousers a day, and sells 30 pairs in the morning at 68 yuan each. According to this calculation, how much more will it sell in the afternoon than in the morning?
一个服装店一天共卖出80条裤子，上午卖出30条，每条68元，照这样计算，下午比上午多卖多少元？
<gadget id="calculator">80 - 30 - 30</gadget>
<output>20</output>

<gadget id="calculator">20 * 68</gadget>
<output>1_360</output>

<result>1_360</result>