Revenue represents the value of goods delivered to third parties, less any value-added taxes or other sales taxes. Revenue is recognised in the income statement when the significant risks and rewards of ownership have been transferred to the buyer. Customer deductions, coupons, rebates, and sales returns and discounts are recorded as reductions to sales and are included in revenue in the consolidated income statement.

Fair value of the consideration received or receivable is allocated between (1) the goods and/or services purchased and delivered and (2) the award credits that will be redeemed in the future, if applicable. The consideration allocated to the award credits is presented as ‘deferred revenue’ in the statement of financial position. No revenue is recognised if there are significant uncertainties regarding recovery of the consideration due, associated costs or the possible return of goods.