A clothing store sells 50 pieces of down jackets in the morning and 30 pieces in the afternoon, and each down jacket costs 110 yuan. How much more is it sold in the morning than in the afternoon?
一个服装店上午卖出50件羽绒服，下午卖出30件，每件羽绒服110元．上午比下午多卖多少元？
<gadget id="calculator">50 - 30</gadget>
<output>20</output>

<gadget id="calculator">20 * 110</gadget>
<output>2_200</output>

<result>2_200</result>