Supertronics, Inc., would like to know how the firm's profitability is altered by product mix. Currently, product mix is determined by giving priority to the product with the highest per-unit contribution margin (defined as the difference between price and material cost). Details on the Supertronics product line, including processing time at each workstation, follow:

Alpha Beta Delta Gamma Price $350.00 $320.00 $400.00 $500.00 Material Cost $50.00 $40.00 $125.00 $150.00 Weekly Demand in Units 100 60 50 80 Processing Time at Machine 1 in Minutes 20 0 40 10 Processing Time at Machine 2 in Minutes 25 20 0 50 Processing Time at Machine 3 in Minutes 0 20 60 30