初中数学题目中常出现的生活中的专有名词（利润率）。
\u521d\u4e2d\u6570\u5b66\u9898\uff0c\u6c42\u5229\u6da6\u7387\u89e3\uff1a\u5047\u8bbe\u539f\u8fdb\u8d27\u4ef7\u4e3aa\uff0c\u51fa\u552e\u4ef7\u4e3ab\uff0c\u5219\u6709\u539f\u5229\u6da6\u7387\u4e3a\uff08b-a\uff09/a\u3002
\uff08b\uff0d(1\uff0d6.4%)\uff0aa\uff09/\uff08\uff081\uff0d6.4\uff05\uff09\uff0aa\uff09\uff0d\uff08b-a\uff09/a \uff1d8\uff05
\u89e3\u5f97\uff1a b\uff1d1.17a
\u6240\u4ee5\uff1a\uff08b-a\uff09/a *100%=17%
\u7b54\uff1a......
\u9500\u552e\u6536\u5165\u5229\u6da6\u7387\u662f\u8861\u91cf\u4f01\u4e1a\u9500\u552e\u6536\u5165\u7684\u6536\u76ca\u6c34\u5e73\u7684\u6307\u6807\uff0c\u5176\u8ba1\u7b97\u516c\u5f0f\u662f\uff1a
\u5229\u6da6\u7387\u662f\u5269\u4f59\u4ef7\u503c\u4e0e\u5168\u90e8\u57ab\u652f\u8d44\u672c\u7684\u6bd4\u7387\u3002
\u8d44\u672c\u91d1\u5229\u6da6\u7387=\u5229\u6da6\u603b\u989d/\u8d44\u672c\u91d1\u603b\u989dX100%\u3002
\u5229\u6da6\u7387\u662f\u53cd\u6620\u4f01\u4e1a\u83b7\u5229\u80fd\u529b\u7684\u91cd\u8981\u6307\u6807\uff0c\u8fd9\u9879\u6307\u6807\u8d8a\u9ad8\uff0c\u8bf4\u660e\u4f01\u4e1a\u9500\u552e\u6536\u5165\u83b7\u53d6\u5229\u6da6\u7684\u80fd\u529b\u8d8a\u5f3a\u3002
绛旓細鍒╂鼎鐜囧氨鏄埄娑︿笌鎴愭湰鐨勭櫨鍒嗘瘮銆
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