The school implemented the "School Safety Project" and built a new teaching building. The actual investment was 1.4 million yuan, which was 200,000 yuan less than the plan. How much was the savings?
学校实施"校安工程"，新建一幢教学楼，实际投资140万元，比计划节约了20万元，节约了百分之几？
<gadget id="calculator">140 + 20</gadget>
<output>160</output>

<gadget id="calculator">20 / 160</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>