The Welfare Lottery Center plans to build a nursing home with a planned investment of 1.8 million yuan, which actually saves 10% compared to the plan, and how much yuan is actually saved compared to the plan.
福彩中心准备新建一座敬老院计划投资180万元，实际比计划节约了10%，实际比计划节约了多少万元．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">180 * (1/10)</gadget>
<output>18</output>

<result>18</result>