The school actually invested 240,000 yuan in building the playground, saving 60,000 yuan compared to the original plan. What percentage was the actual savings compared to the plan?
学校建操场实际投资24万元，比原计划节约6万元，实际比计划节约百分之几？
<gadget id="calculator">24 + 6</gadget>
<output>30</output>

<gadget id="calculator">6 / 30</gadget>
<output>1/5 = around 0.2</output>

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