The qualified rate of a batch of products is 96%, and there are 192 known qualified products, how many unqualified products are there.
一批产品的合格率是96%，已知合格产品有192件，不合格产品有多少件．
<gadget id="calculator">96 / 100</gadget>
<output>24/25 = around 0.96</output>

<gadget id="calculator">192 / (24/25)</gadget>
<output>200</output>

<gadget id="calculator">200 - 192</gadget>
<output>8</output>

<result>8</result>