Calculate the total cost for each aggregate plan based on the following unit costs: Regular output = $40 Overtime = $50 Subcontract = $60 Average Balance Inventory = $10 a. First aggregate plan

Period	Jan	Feb	Mar	Apr	May	Jun
Forecast	300	320	320	340	320	320
Output
Regular	300	300	300	300	300	300
Overtime	20	20	20	20	20	20
Subcontract	0	0	0	0	0	0

b. Second aggregate plan using subcontract

Period	Jul	Aug	Sep	Oct	Nov	Dec
Forecast	320	340	360	380	400	400
Output
Regular	300	300	300	300	300	300
Overtime	20	20	20	20	30	30
Subcontract	20	30	40	40	60	70

c. Based on the second aggregate plan, the operations manager is considering adding temporary additions from July to December. This will increase regular output to 350 units per month. Then it was decided not to use overtime and to use subcontracts if there was a shortage. Determine the total cost of the aggregate plan.