4. An assessment of goodwill impairment is conducted by the management. The goodwill is resulted from previous mergers and acquisitions. During the impairment testing, a discounted cash flow (DCF) is estimated based on internal forecasts (developed using historical financial data) that are subject to a rigorous process and management has demonstrated an ability to accurately forecast. While largely consistent with forecasts used for other internal analysis and tracking, the forecasts used in the goodwill DCF are modified prior to being used elsewhere. Management is using a projected revenue growth rate that is consistent with industry expectations and historical results. Please analyze the risk of material misstatement with the goodwill impairment testing process and suggest appropriate audit procedures.