A shopping mall sells 9 fur coats at 380 yuan each on the first day, and sells 13 of the same fur coats on the second day. How much more is the income on the second day than on the first day? (two ways to answer)
某商场第一天卖出皮大衣9件，每件380元，第二天卖出同样的皮大衣13件，第二天比第一天多收入多少元？(两种方法解答)
<gadget id="calculator">380 * 13</gadget>
<output>4_940</output>

<gadget id="calculator">380 * 9</gadget>
<output>3_420</output>

<gadget id="calculator">4_940 - 3_420</gadget>
<output>1_520</output>

<result>1_520</result>