L05 Sales Mix Decision E11. Grady Enterprises manufactures three computer games. They are called Ris- ing Star, Ghost Master, and Road Warrior. The product line data are as follows: Rising Ghost Road Star Master Warrior Current unit sales demand 20,000 30,000 18,000 Machine hours per unit 2.0 1.0 2,5 Selling price per unit $24.00 $18.00 S32.00 Unit variable manufacturing costs $12.50 $10.00 $18.75 Unit variable selling costs $6.50 $5.00 $6.25 The current production capacity is 110,000 machine hours. 1. Which computer game should be manufactured first? Which should be man- ufactured second? Which last? 2. How many of each type of computer game should be manufactured and sold to maximize the company's contribution margin based on the current pro- duction activity of 110,000 machine hours? What is the total contribution margin for that combination