The step-by-step cost benefit study, confined to measuring and comparing economic costs with economic benefits, is based on the 1971, 1972, and 1973 classes graduating from the Agribusiness-Machinery Partsman-Salesman Program at District One Technical Institute in Eau Claire, Wisconsin. Numerous tables throughout the report contain cost benefit data. Private Economic Costs, Chapter 1, are reflected in a general formula calculating the components of student opportunity cost, other school related expenses, percentage of students receiving financial aid in agribusiness, and the average amount of financial aid received by students in the agribusiness program. The model implies that a student would work or go to vocational school and does not consider the alternative of college. Chapter 2, Societal Economic Cost, identifies 16 components for computation: instructional costs (teachers), student opportunity costs, average financial aid given, equipment depreciation, building depreciation, ancillary and professional, administration local, debt service, operation/maintenance, transportation, fixed charges, transfers to clearing accounts, outgoing transfers accounts, school sales, food services, and school administration. Societal/private economic benefits are determined in Chapter 3; the concluding chapter determines societal/private benefit cost ratios. Two appendixes contain tabulations of material related to private/societal economic costs. (EA)