township plans to reclaim 40 hectares of land, but the actual increase is 6 hectares compared to the plan. What percentage is the increase?
某乡计划开荒造林40公顷，实际比计划增加了6公顷，增加了百分之几？
<gadget id="calculator">6 / 40</gadget>
<output>3/20 = around 0.15</output>

<result>3/20 = around 0.15</result>