13 An entity that elects to apply this Standard in one reporting period may later revoke that election. An entity may elect to apply this Standard more than once - for example, an entity that applied this Standard in a prior period but not in the immediately preceding period may elect to apply this Standard in the current period.

14 An entity that applies this Standard in the current reporting period but not in the immediately preceding period shall provide comparative information (that is, information for the preceding period) for all amounts reported in the current period's financial statements, unless this Standard or another IFRS Accounting Standard permits or requires otherwise. The entity shall include comparative information for narrative and descriptive information if it is necessary for an understanding of the current period's financial statements.

15 An entity that applied this Standard in the preceding reporting period - but elects not to (or is no longer eligible to) apply it in the current period and continues applying IFRS Accounting Standards - shall provide comparative information with respect to the preceding period for all amounts reported in the current period's financial statements, unless another IFRS Accounting Standard permits or requires otherwise. The entity shall include comparative information for narrative and descriptive information if it is necessary for an understanding of the current period's financial statements. The fact that this Standard did not require the disclosure of amounts in the preceding period for some items that are disclosed in the current period is not a reason to omit comparative information for these items.