If 6 out of 200 samples are unqualified, what is the pass rate?
抽检200件产品中，6件不合格，合格率是多少．
<gadget id="calculator">200 - 6</gadget>
<output>194</output>

<gadget id="calculator">194 / 200</gadget>
<output>97/100 = around 0.97</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(97/100) * 1</gadget>
<output>97/100 = around 0.97</output>

<result>97/100 = around 0.97</result>