The chemical factory has produced 300 bottles of shampoo, and 6 bottles are unqualified. What is the pass rate of this batch of shampoo?
化工厂生产了300瓶洗发液，不合格的有6瓶，这批洗发液的合格率是多少．
<gadget id="calculator">300 - 6</gadget>
<output>294</output>

<gadget id="calculator">294 / 300</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>