Methods, apparatus, and computer-readable media are described for generating a credible market value that is utilized to produce a listing price for a property with reduced risk of a substantial reduction in the listing price before selling the property and for assessing risk of incorrectly pricing a property. A subject property, selected comparables, and selected comparables having multiple sales are imported from one or more databases for analysis. Information that is imported may include, for example, property features, original listing prices, record of days on the market, and a final listing price and sales price for each property that was sold. A market analysis process is run to produce relative market assessments and a residential value process is run including appreciation calculations based on the comparable properties having multiple sales to produce the credible market value. Graphs are plotted and other computer outputs are provided to identify the risk of incorrectly pricing a property and to illustrate that risk to a potential seller. Additionally, tools are provided to readily illustrate how changes in underlying assumptions affect the analysis.