| 29. | Earnings per Share |
Basic earnings per share is calculated by dividing the profit from operations attributable to equity holders of the Group by the weighted average number of ordinary shares outstanding during the period, excluding ordinary shares purchased by the Group and held as treasury stock.
Basic earnings per share from operations for the years ended December 31, 2015, 2016 and 2017, is calculated as follows:
| 2015 | 2016 | 2017 | ||||||||||
|
Profit attributable to ordinary shares (In millions of Korean won) |
￦ | 546,361 | ￦ | 708,362 | ￦ | 461,559 | ||||||
|
Profit from continuing operations attributable to ordinary shares |
404,045 | 708,362 | 461,559 | |||||||||
|
Profit from discontinued operations attributable to ordinary shares |
142,316 | — | — | |||||||||
|
Weighted average number of ordinary shares outstanding (In number of shares) |
244,854,364 | 244,892,313 | 245,017,175 | |||||||||
|
Basic earnings per share (In Korean won) |
2,231 | 2,893 | 1,884 | |||||||||
|
Basic earnings per share from continuing operations |
1,650 | 2,893 | 1,884 | |||||||||
|
Basic earnings per share from discontinued operations |
581 | — | — | |||||||||
Diluted earnings per share from operations is calculated by adjusting the weighted average number of ordinary shares outstanding to assume conversion of all dilutive potential ordinary shares. The Controlling Company has dilutive potential ordinary shares from convertible preferred stocks, stock options and other share-based payments.
Diluted earnings per share from operations for the years ended December 31, 2015, 2016 and 2017 is calculated as follows:
| 2015 | 2016 | 2017 | ||||||||||
|
Profit attributable to ordinary shares (In millions of Korean won) |
￦ | 546,361 | ￦ | 708,362 | ￦ | 461,559 | ||||||
|
Adjusted net income attributable to ordinary shares (In millions of Korean won) |
(75 | ) | (67 | ) | — | |||||||
|
Diluted profit attributable to ordinary shares (In millions of Korean won) |
546,286 | 708,295 | 461,559 | |||||||||
|
Diluted profit from continuing operations attributable to ordinary shares |
403,970 | 708,295 | 461,559 | |||||||||
|
Diluted income from discontinued operations attributable to ordinary shares |
142,316 | — | — | |||||||||
|
Number of dilutive potential ordinary shares outstanding (In number of shares) |
1,104 | 84,245 | 79,880 | |||||||||
|
Weighted average number of ordinary shares outstanding (In number of shares) |
244,855,468 | 244,976,558 | 245,097,055 | |||||||||
|
Diluted earnings per share (In Korean won) |
2,231 | 2,891 | 1,883 | |||||||||
|
Diluted earnings per share from continuing operations |
1,650 | 2,891 | 1,883 | |||||||||
|
Diluted earnings per share from discontinued operations |
581 | — | — | |||||||||