Asset valuation refers to the amount of money that your assets are worth in an asset liquidation situation. The rule of thumb for these values is at least 20% less than the retail value of the asset. It is important to get a qualified individual who can help you determine the actual value of your asset. This will help not only in the sale of the asset, but will also help the decision of whether or not to actually sell the asset. If the asset is not worth enough money, it may not be beneficial to sell it at all.