成本利润率 cost-profit ratio; profit rate of cost; profit ratio of cost; return on cost 纯利润率 net profit margin .
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ratio of profit to cost 成本利润率
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Under certain conditions, the ratio between profit dedication and advertising cost should be equal to the point of equilibrium of advertising investment.
在一定条件下，利润贡献与广告成本的比值等于广告投入保本点的销售量。
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