On 31 October 20X4, its balance sheet date, Sons and Daughters Ltd had issued share capital of 600,000 ordinary £1 shares and reserves of £340,000. Four years later, the share capital is unchanged but the reserves have risen to £420,000. Pai Ltd purchased 150,000 shares in Sons and Daughters Ltd on 31 October 20X4 for £260,000. On 31 October 20X8, it paid £650,000 for another 300,000 shares. Calculate the goodwill to be shown in the consolidated balance sheet as at 31 October 20X8.