4 Learning Curve GE produces a new jet engine, JA-423. It took 3,000 labor hours to produce the first unit. GE believes that an 80% cumulative average-time learning model for direct labor hours applies to the JA-423. The variable costs for manufacturing the JA-423 engine are: Direct Material costs - $100,000 per engine Direct Labor costs - $25 per labor hour Variable Overhead costs - $15 per labor hour Calculate the labor hours based on the learning curve (doubling points only) and than calculate the total variable costs (Direct Material, Direct Labor & Variable Overhead) for producing 16 jet engines. Material Costs Direct Labor Overhead Costs Total Costs for 16 Engines -