There are 4,200 bags of wheat in the warehouse. On the first day, 1/7 of the total is shipped, and on the second day, 60% of the total is shipped. How many more bags are shipped on the second day than on the first day?
仓库有小麦4200袋，第一天运走总数的(1/7)，第二天运走总数的60%，第二天比第一天多运多少袋？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(3/5) - (1/7)</gadget>
<output>16/35 = around 0.457143</output>

<gadget id="calculator">4_200 * (16/35)</gadget>
<output>1_920</output>

<result>1_920</result>