Uncle Li bought a stock, which fell by 4% in the first month and another 4% in the second month.
李大伯买了一只股票，第一个月跌了4%，第二个月又跌了4%，共跌了百分之几？
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">1 - (1/25)</gadget>
<output>24/25 = around 0.96</output>

<gadget id="calculator">(24/25) * (24/25)</gadget>
<output>576/625 = around 0.9216</output>

<gadget id="calculator">1 - (576/625)</gadget>
<output>49/625 = around 0.0784</output>

<result>49/625 = around 0.0784</result>