Appraisal methods are techniques used to determine the value of an asset, property, or business. Common methods include the cost approach, which assesses the cost to replace or reproduce an asset, and the sales comparison approach, which compares similar assets that have recently sold to estimate value. Another widely used method is the income approach, which evaluates the potential income an asset can generate. Each method has its strengths and is chosen based on the type of asset being appraised and the purpose of the appraisal, such as for sales, financing, or taxation.