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。

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The average contribution is 0.45% of GDP.

当前的平均救助划拨水平是GDP的0.45%。

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Average contribution per developer is 38 usp (user story points). One of the members makes only 19 usp - twice less than the others.

开发人员平均每人完成38个usp(用户故事点数)。

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This would come to an average contribution of 6.4 percentage points among all workers.

FORBES: Fact and Comment

The government wants to cap overall employer contributions to the civil service scheme at a maximum of 20%, just slightly more than the current average contribution rate of 19.4%.

BBC: NEWS | Business | Civil service pension reforms due

The tests measure two things at each company: the average employee contribution as a percentage of salary, and the average employer match.

FORBES: Taxing Matters: Saving to the max