At the end of each reporting period, the Group verifies whether there is any objective impairment trigger concerning its fixed assets. If such triggers have been identified, Group Bank estimates the recoverable amount. Determination of the value in use of a fixed asset requires the Group to make assumptions as to the estimated amounts, dates of future cash flows that may be generated by the Bank on the fixed asset as well as other factors. When estimating the fair value less costs to sell, the Group relies on available market data or valuations of independent appraisers, which generally are also based on estimates.