33 Earnings per share Basic and diluted earnings per share are calculated in accordance with IAS 33 as follows: (XLS:) Download 2019 2018 2017 Profit attributable to the owners of the parent (net profit (loss)) millions of € 3,867 2,166 3,461 Adjustment millions of € 0 0 0 ADJUSTED NET PROFIT (LOSS) (BASIC/DILUTED) millions of € 3,867 2,166 3,461 Number of ordinary shares issued millions 4,761 4,761 4,722 Treasury shares millions (19) (19) (19) ADJUSTED WEIGHTED AVERAGE NUMBER OF ORDINARY SHARES OUTSTANDING (BASIC/DILUTED) millions 4,743 4,742 4,703 EARNINGS PER SHARE (BASIC/DILUTED) € 0.82 0.46 0.74 The calculation of earnings per share (basic/diluted) is based on the time-weighted number of all ordinary shares outstanding. Furthermore, the weighted average number of ordinary shares outstanding is determined by deducting the weighted average number of treasury shares held by Deutsche Telekom AG. There are currently no significant diluting effects.