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Earnings per share | 6 Months Ended
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Jun. 30, 2023
Earnings per share [abstract] |
Earnings per share | 10. Earnings per share Basic EPS The calculation of basic EPS is as follows:
| Six Months Ended 30 June 2023 |  | Six Months Ended 30 June 2022
Earnings 1 (£ million) | 112.0 |  |  | 257.9 |
Weighted average shares used in basic EPS calculation (million) | 1,071.2 |  |  | 1,115.2 |
EPS | 10.5p |  | 23.1p
Note 1 Earnings is equivalent to profit for the period attributable to equity holders of the parent. Diluted EPS The calculation of diluted EPS is as follows:
| Six Months Ended 30 June 2023 |  | Six Months Ended 30 June 2022
Diluted earnings 1 (£ million) | 112.0 |  |  | 257.9 |
Weighted average shares used in diluted EPS calculation (million) | 1,090.8 |  |  | 1,137.8 |
Diluted EPS | 10.3p |  | 22.7p
Note 1 Diluted earnings is equivalent to profit for the period attributable to equity holders of the parent. A reconciliation between the shares used in calculating basic and diluted EPS is as follows:
| Six Months Ended 30 June 2023 |  | Six Months Ended 30 June 2022
| m |  | m
Weighted average shares used in basic EPS calculation | 1,071.2 |  |  | 1,115.2 |
Dilutive share options outstanding | 0.8 |  |  | 1.4 |
Other potentially issuable shares | 18.8 |  |  | 21.2 |
Weighted average shares used in diluted EPS calculation | 1,090.8 |  |  | 1,137.8 |
At 30 June 2023 there were 1,141,513,196 (30 June 2022: 1,162,563,018) ordinary shares in issue, including treasury shares of 66,675,497 (30 June 2022: 70,489,953).

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