Earnings per Share

12 Months Ended

Dec. 31, 2019

30.	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, 2017, 2018 and 2019, is calculated as follows:


	2017		2018		2019
Profit attributable to ordinary shares (In millions of Korean won)	￦	461,559	￦	645,571		649,109
Weighted average number of ordinary shares outstanding (In number of shares)		245,017,175		245,049,466		245,171,283
Basic earnings per share (In Korean won)		1,884		2,634		2,648

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, 2017, 2018 and 2019 is calculated as follows:


	2017		2018		2019
Profit attributable to ordinary shares (In millions of Korean won)	￦	461,559	￦	645,571		649,109
Adjustment to net income attributable to ordinary shares (In millions of Korean won)		—		—		(157	)
Diluted profit attributable to ordinary shares (In millions of Korean won)		461,559		645,571		648,952
Number of dilutive potential ordinary shares outstanding (In number of shares)		79,880		1,163		70,267
Weighted average number of ordinary shares outstanding (In number of shares)		245,097,055		245,050,629		245,241,550
Diluted earnings per share (In Korean won)		1,883		2,634		2,646

Diluted earnings per share is earnings per outstanding of ordinary shares and dilutive potential ordinary shares. Diluted earnings per share is calculated by dividing adjusted profit for the year by the sum of the number of ordinary shares and dilutive potential ordinary shares.