A township planted 18 hectares this year, 3 hectares more than planned. What percentage of the actual afforestation is more than planned?
某乡今年造林18公顷，比计划多造林3公顷．实际比计划多造林百分之几？
<gadget id="calculator">18 - 3</gadget>
<output>15</output>

<gadget id="calculator">3 / 15</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>