A computer program product having code that when executed implements steps in a method for displaying to the user a recalculated sales price of realty. The recalculated sales price reflects user-selected brokerage services and not a fixed-commission percentage, typical with the sale of realty. Steps include establishing a database of itemized broker services; accessing a sales price of the realty; providing user access to the database; recording user-selected broker services; producing a recalculated sales price of the real estate property factoring the user-selected broker services into the sales price; and then displaying to the user the recalculated sales price. A system using the computer program product gets smarter with use because the method may include steps of automatically recalculating average factors used to produce a recalculated sales price of the real estate property.