A company has estimated the following demand for forthcoming 6 work periods. If the capacity and costs parameters of production are:

(1) Regular capacity of 600 units per period at production cost of $50 per unit.

(2) Overtime at an additional cost of $20 per unit up to a maximum of 50 units/period.

(3) Subcontract at an additional cost of $25 per unit up to a maximum of 100 units/period.

(4) Inventory carrying cost is $15 per unit-period.

Recommend a least cost aggregate production plan. No need to calculate costs.

	Period	Forecast	Regular Production	Overtime Production	Inventory	Subcontract Quantity
	1	400
	2	500
	3	800
	4	600
	5	900
	6	700
	Total