A certain town has planted 2,000 hectares of trees this year, which is 400 hectares more than last year. What percentage is the increase in afforestation this year compared to last year?
某乡今年植树造林2000公亩，比去年多400公亩，今年比去年多造林百分之几？
<gadget id="calculator">2_000 - 400</gadget>
<output>1_600</output>

<gadget id="calculator">400 / 1_600</gadget>
<output>1/4 = around 0.25</output>

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