Xiaotao's family bought a house for renovation, originally planned to spend 120,000 yuan on renovation, but actually spent 108,000 yuan on renovation. How many percent did Xiaotao's house actually spend on decoration compared to the original plan?
小涛家买了一套房子准备装修，原计划花12万元装修，实际装修后用去了10.8万元．小涛家实际用去的装修费比原计划节约百分之几？
<gadget id="calculator">12 - 10.8</gadget>
<output>1.2</output>

<gadget id="calculator">1.2 / 12</gadget>
<output>0.1</output>

<result>0.1</result>