(5)   Earnings (Loss) Per Common Share

Basic earnings (loss) per common share ("EPS") is computed by dividing net earnings (loss) by the weighted average number of common shares outstanding for the period. Diluted EPS presents the dilutive effect on a per share basis of potential common shares as if they had been converted at the beginning of the periods presented.

Series A and Series B Liberty Interactive Common Stock

Excluded from diluted EPS, for the the three months ended September 30, 2014 and 2013, are 2 million and less than a million potential common shares, respectively, because their inclusion would be antidilutive. Excluded from diluted EPS, for the nine months ended September 30, 2014 and 2013, are 2 million and less than a million potential common shares, respectively, because their inclusion would be antidilutive. 

Series A and Series B Liberty Ventures Common Stock

As discussed in note 11, Liberty completed a two for one stock split on April 11, 2014 on its Series A and Series B Liberty Ventures common stock. Therefore, all prior period outstanding share amounts have been retroactively adjusted for comparability.  Excluded from diluted EPS, for all periods presented, are less than a million potential common shares because their inclusion would be antidilutive.