Basic earnings per share are calculated by dividing the net profit attributable to shareholders by the weighted average number of ordinary shares outstanding during the year.
|   | 2015  | 2014  | 
Net result attributable to shareholders  | 4,034  | 612  | 
Weighted average number of ordinary shares  | 267,886  | 203,090  | 
Basic earnings per share (€ per share)  | 15.06  | 3.01  | 
The Office Fund has no potentially dilutive ordinary shares. Therefore, the diluted earnings per share are the same as the basic earnings per share.