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September 2018. Note 2 - Alpha's investment in Gamma On 1 October 2015, Alpha acquired 36 million shares in Gamma by means of a cash payment of $145 million. Gamma's issued share capital at that date was 120 million shares. On 1 October 2015 and 30 September 2018, the individual financial statements of Gamma showed retained earnings of $45 million and $65 million respectively. Since 1 October 2015, no other investor has owned more than 2% of the shares of Gamma. Note 3 - Alpha's investment in Delta On 1 October 2012, Alpha issued 80 million of its own shares in exchange for an 80% shareholding in Delta. Delta has an issued share capital of 100 million shares. The fair value of an equity share in Alpha on that date was $1.40. The fair values of the net assets of Delta at 1 October 2012 were the same as their carrying amounts. On 1 October 2012, the directors of Alpha initially measured the non-controlling interest in Delta at its fair value on that date. On 1 October 2012, the fair value of an equity share in Delta (which can be used to measure the fair value of the non-controlling interest) was $1.10. The individual financial statements of Delta showed net assets at the following amounts: - $110 million on 1 October 2012. - $170 million on 30 September 2017. In the year ended 30 September 2018, the individual financial statements of Delta showed a profit of $24 million. On 31 March 2018, Delta paid a dividend of $9 million. On 30 June 2018, Alpha disposed of its shareholding in Delta for cash proceeds of $180 million. The individual financial statements of Alpha recognised the correct profit on disposal of its shareholding in Delta. No impairment of the goodwill on acquisition of Delta had been necessary between 1 October 2012 and 30 June 2018. Note 4 - Intra-group trading Alpha supplies a