The actual cost of decorating a new house in Xiaohong's house was 80,000 yuan, which was 20,000 yuan less than planned. What percentage did you save?
小红家装修新房，实际花费8万元，比计划节约2万元．节约了百分之几？
<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

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