Retrospective adjustments
The calculation of basic and diluted EPS for all periods presented is adjusted retrospectively when the number of ordinary or potential ordinary shares outstanding increases as a result of a capitalisation, bonus issue, or share split, or decreases as a result of a reverse share split. If such changes occur after the balance sheet date but before the financial statements are authorised for issue, the EPS calculations for those and any prior period financial statements presented are based on the new number of shares. Disclosure is required. [IAS 33.64]
Basic and diluted EPS are also adjusted for the effects of errors and adjustments resulting from changes in accounting policies, accounted for retrospectively. [IAS 33.64]
Diluted EPS for prior periods should not be adjusted for changes in the assumptions used or for the conversion of potential ordinary shares into ordinary shares outstanding. [IAS 33.65]
Disclosure
If EPS is presented, the following disclosures are required: [IAS 33.70]
the amounts used as the numerators in calculating basic and diluted EPS, and a reconciliation of those amounts to profit or loss attributable to the parent entity for the period the weighted average number of ordinary shares used as the denominator in calculating basic and diluted EPS, and a reconciliation of these denominators to each other instruments (including contingently issuable shares) that could potentially dilute basic EPS in the future, but were not included in the calculation of diluted EPS because they are antidilutive for the period(s) presented a description of those ordinary share transactions or potential ordinary share transactions that occur after the balance sheet date and that would have changed significantly the number of ordinary shares or potential ordinary shares outstanding at the end of the period if those transactions had occurred before the end of the reporting period. Examples include issues and redemptions of ordinary shares issued for cash, warrants and options, conversions, and exercises [IAS 34.71]
An entity is permitted to disclose amounts per share other than profit or loss from continuing operations, discontinued operations, and net profit or loss earnings per share. Guidance for calculating and presenting such amounts is included in IAS 33.73 and 73A.