Superseded by IFRS 15: Revenue from Contracts with Customers for annual reporting periods beginning on or after 1 January 2018. Earlier application is permitted.
38 The percentage of completion method is applied on a cumulative basis in each accounting period to the current estimates of contract revenue and contract costs. Therefore, the effect of a change in the estimate of contract revenue or contract costs, or the effect of a change in the estimate of the outcome of a contract, is accounted for as a change in accounting estimate (see IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors). The changed estimates are used in the determination of the amount of revenue and expenses recognised in profit or loss in the period in which the change is made and in subsequent periods.