Gome held store celebration activities. The original price of the micro-boiler was 1,200 yuan, and the price was reduced to 900 yuan. How much has it been reduced?
国美电器进行店庆活动，微锅炉原价1200元，降价后卖900元，降了多少．
<gadget id="calculator">1_200 - 900</gadget>
<output>300</output>

<gadget id="calculator">300 / 1_200</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>