The road construction team spent 120 million yuan to build a road, which was 30 million yuan less than the plan. How much was the savings?
筑路队修筑一条公路，共用了1.2亿元，比计划节省了0.3亿元，节省了多少．
<gadget id="calculator">1.2 + 0.3</gadget>
<output>1.5</output>

<gadget id="calculator">0.3 / 1.5</gadget>
<output>0.2</output>

<result>0.2</result>