A certain project, the planned investment is 100,000 yuan, the actual investment is 80,000 yuan, how much is saved?
某项工程，计划投资10万元，实际投资8万元，节约了多少．
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

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