Annual Report 2013 67 We record revenue, expenses and assets net of the amount of Goods and Services Tax (GST) except: The net amount of GST recoverable from, or payable to, the taxation authority is included as part of receivables or payables in the statement of  financial position�  Cash flows are included in the statement of cash flows on a gross basis and the GST component of cash flows arising from investing and financing  activities, which is recoverable from, or payable to, the taxation authority is classified as part of operating cash flows�  Commitments and contingencies are disclosed net of the amount of GST recoverable from, or payable to, the taxation authority� Basic earnings per share is calculated as net profit attributable to ordinary shareholders, adjusted to exclude any costs of servicing equity (other  than dividends), divided by the weighted average number of ordinary shares outstanding during the period�  Diluted earnings per share adjusts the figures used in the determination of basic earnings per share to take into account:  the after tax effect of interest and other financing costs associated with dilutive potential ordinary shares that have been recognised as  expenses, and  the weighted average number of additional ordinary shares that would have been outstanding assuming the conversion of all dilutive potential  ordinary shares� When the GST incurred on a purchase of goods and services is not recoverable from the taxation authority, in which case the GST is  recognised as part of the cost of acquisition of the asset or as part of the expense item as applicable� Receivables and payables, which are stated with the amount of GST included� 3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED) (t) Income tax and other taxes (continued) (u) Earnings per share (ii) Other taxes (i) Basic earnings per share (ii) Diluted earnings per share NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS CONT