This chapter contains certain non-IFRS financial measures and ratios, such as comparable sales growth, EBITA, Adjusted EBITA and free cash flow, and related ratios, which are not recognized measures of financial performance or liquidity under IFRS. These measures are further discussed in chapter 5, Corporate performance. For a reconciliation of these non-IFRS financial measures to the most directly comparable IFRS financial measures, see chapter 19, Reconciliation of non-IFRS financial measures.