Two 40cm long iron wires, one encloses a square and the other encloses a rectangle with a length of 12cm. What percent of the area of the rectangle is the area of the square?
两根40cm长的铁丝，一根围成正方形，另一根围成一个长为12cm的长方形．长方形的面积是正方形面积的百分之几？
<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 - 12</gadget>
<output>8</output>

<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">12 * (2/25)</gadget>
<output>24/25 = around 0.96</output>

<result>24/25 = around 0.96</result>