The side length of cube A is 2 cm, and the side length of cube B is 4 cm. What percentage of the volume of cube A is the volume of cube B?
正方体A的棱长是2厘米，正方体B的棱长是4厘米，正方体A的体积是正方体B体积的百分之几？
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<gadget id="calculator">8 / 64</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>