Method, program, and system for computing accounting savings

Method, system, and computer program product for computing accounting savings for a business related investment of a target product. The target product and at least one currently used product have at least one feature, and the business comprises at least one business related activity. The method comprises reading, from a database, business activities, target and current product features, their relation, and predetermined values of savings obtained by the features of the products on an activity. The difference of savings between the target and current product per activity is computed. During the process the read data are displayed to the user, who can then modulate the values or add new ones.