... 产量投资比 output-investment ratio 利润投资比 pi ratio; profit investment ratio; profit to investment ratio 收益投资比 benefit cost ratio; benefit ratio ...
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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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