FRS 3, Reporting Financial Performance, requires that earnings per share should be calculated on the profit after tax, minority interest and extraordinary items. FRS 3 permits an additional measure of earnings per share to be disclosed provided it is presented on a consistent basis over time and reconciled to the amount required by the standard. There should also be an explanation of the reasons for calculating the additional version.

As a result, there is no longer a unique measure of performance. Is this a good thing and what problems might this give preparers and users of financial statements?