During the decades when the Aluminum Company of America (Alcoa) was the only producer of virgin ingot aluminum in the United States, its annual profit rate on its investment was about 10 percent after taxes.

美国铝业公司（Alcoa）作美国唯一一家原铝锭生产商的几十年间，的年税利润率10%。

This is calculated by dividing the after-tax profit by the number of shares outstanding – the number issued and in existence.

是通过将税利润除以已发行股票数量（已发行和存在的数量）计算得出的。

For example, if a company has an after-tax profit of €1 million and has four million shares outstanding, it has EPS of 25 cents.

例如，如果一家公司的税利润 100 万欧元， 流通股 400 万股，则每股收益 25 美分。