Master Li has processed 200 parts, of which 198 are qualified. What is the pass rate of this batch of parts?
李师傅加工了200个零件，其中合格的零件有198个，这批零件的合格率是多少．
<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>