A cuboid block whose length, width, and height are 3, 4, and 5 centimeters respectively, if a largest cube is cut off from it, what percentage will the current volume be reduced compared to the original volume?
一个长、宽、高各是3、4、5厘米的长方体木块，如果从它上面锯下一个最大的正方体，则现在的体积比原来的体积减少百分之几？
<gadget id="calculator">5 * 4 * 3</gadget>
<output>60</output>

<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>

<gadget id="calculator">60 - 27</gadget>
<output>33</output>

<gadget id="calculator">33 / 60</gadget>
<output>11/20 = around 0.55</output>

<result>11/20 = around 0.55</result>