The factory produced a batch of parts, a total of 200. Among them, 198 parts are qualified products. What is the qualified rate of this batch of parts?
工厂生产了一批零件，共200个．其中198个零件是合格产品，这批零件的合格率为多少．
<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>