积累是扩大再生产的源泉。积累率是研究消费和积累关系的关键性指标。它的计算方法,涉及若干复杂的经济理论以及统计理论和方法问题,中外各国互有差异。我国计算积累率的方法,是以积累资金与国民收入使用额相比,用公式表示之就是: Accumulation is the source of expanded reproduction. The accumulation rate is a key indicator of the relationship between consumption and accumulation. Its method of calculation involves a number of complex economic theories as well as statistical theory and methodological issues, which differ from one country to another. The method for calculating the rate of accumulation in our country is based on the comparison between the amount of funds accumulated and the amount of national income used. The formula is: