A production team processed 200 parts, 15 of which were unqualified. Seeking pass rate.
某生产小组加工了200个零件，其中15个不合格．求合格率．
<gadget id="calculator">200 - 15</gadget>
<output>185</output>

<gadget id="calculator">185 / 200</gadget>
<output>37/40 = around 0.925</output>

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

<gadget id="calculator">(37/40) * 1</gadget>
<output>37/40 = around 0.925</output>

<result>37/40 = around 0.925</result>