【中文版】

杜邦分析是一种财务分析方法，它通过对净资产收益率进行分解，分析和评价公司的盈利能力及股东权益回报水平。具体来说，杜邦分析将净资产收益率分解为三个主要成分：资产周转率、税前利润率和权益乘数。

首先，资产周转率反映了公司单位资产创造收入的能力，它取决于公司销售收入与平均资产余额的比率。其次，税前利润率反映了公司单位销售收入创造利润的能力，它取决于公司税前利润与销售收入的比率。最后，权益乘数反映了公司使用财务杠杆的程度，它取决于公司平均总资产与平均净资产的比率。

通过杜邦分析，可以深入了解公司的盈利能力及股东权益回报水平的内在因素，从而更好地评估公司的财务状况和经营业绩。

【英文版】

DuPont analysis is a financial analysis method that decomposes the return on equity (ROE) into three main components: asset turnover, pretax margin, and the equity multiplier. This analysis provides insights into the company's profitability and return on equity levels.

Asset turnover reflects the company's ability to generate revenue per unit of assets and is determined by the ratio of sales revenue to average asset balance. Pretax margin reflects the company's ability to generate profits per unit of sales revenue and is determined by the ratio of pretax profit to sales revenue. The equity multiplier reflects the degree to which the company uses financial leverage and is determined by the ratio of average total assets to average net assets.

Through DuPont analysis, one can gain insights into the internal factors that affect a company's profitability and return on equity levels, thereby better evaluating the company's financial condition and operating performance.