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Earnings per share
12 Months Ended
Dec. 31, 2023
Earnings per share [abstract]  
Earnings per share Earnings per share
(a) Basic
 
Basic earnings per share is calculated by dividing the profit attributable to equity holders of the Group by the weighted average number of shares in issue during the period excluding ordinary shares held as treasury shares (Note 23).

 202320222021
Profit from operations attributable to equity holders of the Group226,291 108,138 130,669 
Weighted average number of shares in issue (thousands)107,092 110,079 115,148 
Basic earnings per share2.113 0.982 1.135 
 
(b) Diluted
 
Diluted earnings per share is calculated by adjusting the weighted average number of shares outstanding to assume conversion of all dilutive potential shares. The Group has two categories of dilutive potential shares: equity-settled share options and restricted units. For these instruments, a calculation is done to determine the number of shares that could have been acquired at fair value, based on the monetary value of the subscription rights attached to outstanding share options. The number of shares calculated as above is compared with the number of shares that would have been issued assuming the exercise of the equity-settled share options. During 2023, the share options outstanding average were 401 thousands (2022: 361 thousands; 2021: 466 thousands) share options outstanding.

 202320222021
Profit from operations attributable to equity holders of the Group226,291 108,138 130,669 
Weighted average number of shares in issue (thousands)107,092 110,079 115,148 
Adjustments for:
- Employee share options and restricted units (thousands)401 361 466 
Weighted average number of shares for diluted earnings per share (thousands)107,493 110,440 115,614 
Diluted earnings per share2.105 0.979 1.130