Lintao County originally planned to afforest 120 hectares this year, but actually afforested 150 hectares. How much more is the actual afforestation than the original plan?
临洮县今年原计划造林120公顷，实际造林150公顷．实际造林比原计划多百分之几？
<gadget id="calculator">150 - 120</gadget>
<output>30</output>

<gadget id="calculator">30 / 120</gadget>
<output>1/4 = around 0.25</output>

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