A car originally sold for 200,000 yuan, but now it sells for 160,000 yuan. How much has the price been reduced?
一辆汽车原来售价20万元，现在售价16万元，降价了百分之几？
<gadget id="calculator">20 - 16</gadget>
<output>4</output>

<gadget id="calculator">4 / 20</gadget>
<output>1/5 = around 0.2</output>

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