ter operations manager is considering a new plan, which begins in January with 200 units of inventory on hand. Srockout cost of lost sales is $100 per unit inventory holding cout is $25 per unit pe nonth. lgnore any icle-time costs. The plan is called plan A Pan A. Vary the wordorce level to execule a strategy that peoduces the quantly demanded in the prior month. The December demand and rate of production are both 1.600 units per month. The ost of hiring additional workers is $50 per unit. The cost of laying off workers is $75 per unit. Evaluale this plan. (Enter all responses as whole numbers) Wote. Both hiring and layoif costs are incurred in the month of the change. For example, going from 1,600 in January to 1,500 in Febriary incurs a cost of layoll for foo units in February. The total cost of hirings =$ (Enter your response as a whole number.) The total cost of layoffs =$ (Enter your response as a whole number.) The total inventory carrying cost =$ (Enter your response as a whole number.)