A brick factory expanded its workshop with an investment of 47,600 yuan, saving 20,400 yuan compared to the plan, and how much was saved compared to the plan.
某砖厂扩建厂房，投资4.76万元，比计划节约2.04万元，比计划节约了多少．
<gadget id="calculator">4.76 + 2.04</gadget>
<output>6.8</output>

<gadget id="calculator">2.04 / 6.8</gadget>
<output>0.3</output>

<result>0.3</result>