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Her operations manager is considering a new plan, which begins in January with 200 units of inventory on hand. Stockout cost of lost is $100 per unit. Inventory holding cost is $25 per unit per month. Ignore any idle-time costs. The plan is called plan A. Plan A: Vary the workforce level to execute a "chase" strategy by producing the quantity demanded in the prior month. The December demand and rate of production are both 1,600 units per month. The cost of hiring additional workers is $50 per unit. The cost of laying workers is $80 per unit. Evaluate this plan. (Enter all responses as whole numbers.)