Appliances Inc. is preparing an aggregate production plan for washers for next four months. The company’s expected monthly demand is given below in the chart. The company will have 500 washers in inventory at the beginning of the month and desired to maintain at least that number at the end of each month. Below is other critical data:

Production cost per unit = $300

Inventory Carrying cost per month per unit = $50 (based on ending month inventory)

Hiring Cost per worker = $1,000

Firing cost per worker = $2,000

Beginning # of workers = 10

Each worker can produce 100 units per month