Master Li processed 200 parts, and 2 failed. What is the pass rate?
李师傅加工200个零件，有2个不合格，合格率为多少
<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>