The actual investment of a project is 1.2 million yuan, which is 20% less than the plan. How much is the planned investment?
一项工程实际投资120万元，比计划节约20%，计划投资多少万元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">120 / (4/5)</gadget>
<output>150</output>

<result>150</result>