L A steel workshop PT Robert produces leaf springs for cars. They have a demand forecast for the next 6 months as follows: 1. January 495 units (20 days production time) ii. February 600 units (18 days production time) ii. March 700 units (20 days production time) iv. April 900 units (20 days production time) v. May 650 units (20 days production time) vi. June 550 units (20 days production time) The following is some important information as the basis for calculating production costs as follows: i. Inventory cost $4 per unit ii. Subcontractor fee $15 per unit ili. Labor costs $10 per hour or $80 per day iv. Production time per unit 1.6 hours Tasks and questions a. Assuming that the number of units that can be produced is 35 units per day and 1 person can make 7 units, make a cost estimate using the Constant Workforce approach. b. Assuming that internal processing is carried out using the lowest daily production capacity for 6 months and is constant, calculate the estimated production costs using a subcontractor approach c. Which approach will the workshop take? Explain your