Dad bought a branded computer for 8,400 yuan two months ago, and now the price has been reduced (1/4). How much does this branded computer cost now?
爸爸两个月前用8400元买了一台品牌电脑，现在降价了(1/4)，现在这种品牌电脑卖多少钱？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">8_400 * (3/4)</gadget>
<output>6_300</output>

<result>6_300</result>