A project plans to invest 2.5 million yuan, and the actual investment is 2 million yuan. What percentage is actually saved?
某项目计划投资250万元，实际投资200万元，实际节约了百分之几？
<gadget id="calculator">250 - 200</gadget>
<output>50</output>

<gadget id="calculator">50 / 250</gadget>
<output>1/5 = around 0.2</output>

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