A project, due to the use of advanced technology, only used 144,000 yuan, saving 36,000 yuan compared with the original plan. How much was the savings?
一项工程，由于采用了先进技术，只用了14.4万元，比原计划节约投资3.6万元，节约了百分之几？
<gadget id="calculator">14.4 + 3.6</gadget>
<output>18</output>

<gadget id="calculator">3.6 / 18</gadget>
<output>0.2</output>

<result>0.2</result>