Master Wang made a batch of parts, 94 passed the inspection, and 4 failed. What percentage of the total number of parts are unqualified?
王师傅制作一批零件，经检验合格的有94个，不合格的有4个，不合格的占零件总数的几分之几？
<gadget id="calculator">94 + 4</gadget>
<output>98</output>

<gadget id="calculator">4 / 98</gadget>
<output>2/49 = around 0.040816</output>

<result>2/49 = around 0.040816</result>