Zhangjia Village planted 600,000 trees this year and 480,000 trees last year. How many percent has the number of trees planted this year increased compared to last year?
张家村今年植树60万棵，去年植树48万棵，今年比去年植树棵数增加了百分之几？
<gadget id="calculator">60 - 48</gadget>
<output>12</output>

<gadget id="calculator">12 / 48</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>