For a project, the actual investment is 95% of the planned investment, how much is the actual investment saved compared to the planned investment?
一项工程，实际投资是计划投资的95%，实际投资比计划投资节约了多少．
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1 - (19/20)</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>