The actual investment in building a chemical fertilizer plant only accounted for 80% of the original plan, and the actual investment was 360,000 yuan. How many yuan was saved?
兴建一座化肥厂的实际投资只占原计划的80%，实际投资36万元，节约了多少万元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">36 / (4/5)</gadget>
<output>45</output>

<gadget id="calculator">45 - 36</gadget>
<output>9</output>

<result>9</result>