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current cost per share 8.81

2524.40 / 7.04 = 353 shares

new share count 353 + 267 = 620

new cost per share (2524.40 +2352)/620.0 = 7.86 per share


2012-07-31
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shares = 653.00
cost   = 5156.13
fees   = 8.95

CPS = cost / (shares + fees) # = 7.78