(q) Foreign  Currency (r)  Trade and Other Creditors (s)  Rehabilitation and Restoration Costs (t) Borrowing Costs (u) Interest Bearing Liabilities (v)  Rounding of Amounts (w) Earnings per Share Transactions denominated in a foreign currency are converted at the exchange rate at the date of the transaction. Foreign currency receivables and payables at balance date are translated at exchange rates at balance date. Exchange gains and losses are brought to account in determining the pro fi  t or loss for the year. Exchange gains and losses and hedging costs arising on forward foreign exchange contracts entered into as hedges  of speci fi  c commitments are deferred on the statement of fi  nancial position and included in the determination  of the amounts at which the hedged transactions are brought to account. All exchange gains and losses relating  to other hedge transactions are brought to account in the statement of fi  nancial performance in the same year  as the exchange differences on the items covered by the hedge transactions.  Gains and losses on foreign currency transactions that are not accounted for as speci fi  c hedges, if any, are brought  to account as they arise and disclosed as speculative gains or losses. These amounts represent liabilities for goods and services provided to the consolidated entity prior to the end of the  fi  nancial year and which are unpaid. These amounts are unsecured. Provision is made on a straight line basis for the consolidated entity’s estimated liability under speci fi  c legislative  requirements and the conditions of its mining leases for future costs expected to be incurred in restoring areas  of interest. The estimated liability is based on the restoration work required, using existing technology, as a result  of activities to date. Borrowing costs are recognised as expenses in the year in which they are incurred. Borrowing costs include interest  on bank overdrafts, short-term and long-term borrowings,  fi  nance lease charges, the fair value of equity securities issued  in satisfaction of interest and facility fees and amortisation of establishment costs and facility fees in connection with the  arrangement of borrowings. Loans are carried at their principal amounts which represent the present value of future cash  fl  ows associated  with servicing the debt. Interest is accrued over the period it becomes due and is recorded as part of other creditors. The Company is of a kind referred to in Class Order 98/0100, issued by the Australian Securities and Investments  Commission, relating to the “rounding off ” of amounts in the  fi  nancial report. Amounts in the report have been  rounded off in accordance with that Class Order to the nearest thousand dollars, or in certain cases, to the nearest  dollar. Basic earnings per share is determined by dividing net pro fi  t after income tax attributable to members  of the Company, excluding any costs of servicing equity other than ordinary shares, by the weighted average  number of ordinary shares outstanding during the  fi  nancial year, adjusted for bonus elements in ordinary shares  issued during the year. Diluted earnings per share adjusts the  fi  gures used in the determination of basic earnings per share to take into  account the after income tax effect of interest and other  fi  nancing costs associated with dilutive potential ordinary  shares and the weighted average number of shares assumed to have been issued for no consideration in relation to  dilutive potential ordinary shares. (iv) Basic earnings per share (v) Diluted earnings per share 35