Beating Wall Street with Common Sense: How I Achieved a 400% Return from my Dorm Room

by Wayne Duggan

P/E is calculated as follows: first, determine the earnings per share (EPS). EPS is found by taking the profits and dividing by the share count to determine the amount of profit per share. For AAPL, this number is $41.7 billion divided by 945 million, which equals $44.10. For BBRY, it is $2.86.