The price of a black and white TV is reduced by 25 yuan to 600 yuan. How much is the price reduction?
一台黑白电视机降价25元后是600元，降价百分之几？
<gadget id="calculator">600 + 25</gadget>
<output>625</output>

<gadget id="calculator">25 / 625</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>