This excerpt taken from the ICI 6-K filed Mar 14, 2006.
5 Earnings per £1 Ordinary Share pence per share
Basic earnings per £1 Ordinary Share and diluted earnings per £1 Ordinary Share for a period are calculated by dividing the appropriate value (continuing, discontinued or total) of net profit (loss) for the financial year (see tables on pages 143 and 144) by, respectively, basic weighted average Ordinary Shares in issue during the period or diluted weighted average Ordinary Shares in issue during the period.
Notes relating to Group selected financial data continued
5 Earnings per £1 Ordinary Share pence (continued)