The current price divided by the average of the last actual earnings per share figure and the projected EPS figure for the next year. The two figures are weighted based on the elapsed time between each period.
We use both forecast and historical EPS to give a more balanced P/E ratio than using either one alone."
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My Comments: I think the different figures you often see is whether the PE is based on the actual EPS or forecast EPS. Someone may come up with a better explanation of this
