For a batch of goods, the number of bags transported away is 60 more than the remaining bags, and the number of remaining bags is 20% less than the number of bags transported. How many bags are there in this batch?
一批货物，运走的袋数比剩下的多60袋，剩下的袋数比运走的少20%，这批货物有多少袋？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 / (1/5)</gadget>
<output>300</output>

<gadget id="calculator">300 - 60</gadget>
<output>240</output>

<gadget id="calculator">300 + 240</gadget>
<output>540</output>

<result>540</result>