During the Spring Festival, the flight ticket from Ningbo to Beijing is discounted, the current price is 768 yuan, the original price is 1280 yuan, how much is the price reduced?
春节期间，宁波飞北京机票打折，现价768元，原价1280元，降价了百分之几？
<gadget id="calculator">1_280 - 768</gadget>
<output>512</output>

<gadget id="calculator">512 / 1_280</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>