Global Defense manufactures radar systems. It has just completed the manufacture of its first newly designed system, RS- 32 . Manufacturing data for the RS- 32 follow: (Click icon to view data) Requirement Calculate the total variable costs of producing 2,4 , and 8 units. Begin by calculating the cumulative total time in labor-hours using the cumulative average-time learning model. (Round the cumulative average time per unit to the nearest whole number.)