A workshop recently produced a batch of 200 parts, and 2 failed. Find the pass rate of this batch of parts.
某车间最近生产一批零件共200个，不合格2个，求这批零件的合格率．
<gadget id="calculator">200 - 2</gadget>
<output>198</output>

<gadget id="calculator">198 / 200</gadget>
<output>99/100 = around 0.99</output>

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

<gadget id="calculator">(99/100) * 1</gadget>
<output>99/100 = around 0.99</output>

<result>99/100 = around 0.99</result>