Notes to the financial statements (cont’d) 29 Earnings per share For the year ended 30 June 2012 The average market value of the Company’s shares for purposes of calculating the dilutive effect of share options was based on  quoted market prices for the period during which the options were outstanding. On 4 October 2011, the Group gained control of DKN by acquiring 100% of shares not already owned by the Group under a scheme of  arrangement. The acquisition price was $0.80 per share and resulted in a total consideration payable to shareholders of $96 million. In the period from acquisition to 30 June 2012, DKN contributed revenue of $18,424,000 and a profit of $3,871,000 to the Group’s  results. This excludes integration and transaction costs (refer Other Expenses in note 8) and the fair value gain on investment in DKN  (refer note 7). If the acquisition had occurred on 1 July 2011, management estimates that the consolidated revenue would have been $622,139,000  and consolidated profit for the year would have been $16,048,000. In determining these amounts, management has assumed that the  fair value adjustments, determined provisionally, that arose on the date of acquisition would have been the same if the acquisition had  occurred on 1 July 2011. The following summarises the major classes of consideration transferred, and the recognised amounts of assets acquired and liabilities  assumed at the acquisition date: page 102 Consideration transferred Note $’000 Cash 96,119  Cash balances acquired (9,683) Net cash consideration 86,436  Replacement share-based payment awards 31 234  Total consideration 86,670  30 Acquisition of subsidiary At 30 June 2012, 4,040,701 options were excluded from the diluted weighted average number of ordinary shares calculation as their  effect would not have been dilutive. The earnings and weighted average number of ordinary shares used in the calculation of basic earnings per share are as follows:  Basic earnings per share Consolidated 2012 2011 cents cents Basic earnings per share 8.4  43.1  Diluted earnings per share 8.3  42.9  $’000 $’000 Profit for the period attributable to owners of the Company 19,373  99,489  Earnings used in the calculation of basic EPS 19,373  99,489  Weighted average number of ordinary shares No. ’000 No. ’000 Weighted average number of ordinary shares (basic) 231,985  230,676  Effect of unvested performance rights 547  580  Effect of share options on issue 106  654  Weighted average number of ordinary shares (diluted) 232,638  231,910 