The school plans to use 540,000 yuan to build a laboratory building, and the actual increase is 54,000 yuan. What percentage of the increased investment?
学校准备用54万元建实验楼，实际增加5.4万元，增加投资百分之几？
<gadget id="calculator">5.4 / 54</gadget>
<output>0.1</output>

<result>0.1</result>