Xiushan Primary School carried out afforestation activities, originally planned to plant 800 trees, but actually planted 960 trees. By what percentage did it actually exceed the original plan?
秀山小学开展植树造林活动，原计划植树800棵，实际植树960棵．实际超过原计划百分之几？
<gadget id="calculator">960 - 800</gadget>
<output>160</output>

<gadget id="calculator">160 / 800</gadget>
<output>1/5 = around 0.2</output>

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