Explain how to calculate a weighted average contribution margin per unit.
解释如何计算加权单位产品贡献毛益。
Once you know the selling price and direct costs of each product or service unit you sell, you can calculate your contribution margin in dollars per unit.
一旦你知道了产品或服务的零售价和直接成本,你就可以计算出单位产品边际收益。
This module supports environmental analysis for mass stream, process unit and total process flow, then calculate environmental impact index for each process alternative.
该模块可以对物质流、过程单元和总流程提供环境模拟分析,并计算过程方案的环境影响指数。