Young worker Xiao Zhang processed 500 machine parts, and after quality inspection, 5 of them were unqualified. How about the pass rate?
青年工人小张加工500个机器零件，经质量检验，有5个不合格，求合格率？
<gadget id="calculator">500 - 5</gadget>
<output>495</output>

<gadget id="calculator">495 / 500</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>