per month, and zero beginning and ending inventory, evaluate these two plans on an incremental cost basis: whole numbers). The total cost, excluding normal time labor costs, for Plan A=$. (Enter your response as a whole number.) whole numbers.) Note: Both hiring and layoff costs are incurred in the month of the change (i.e., going from production of 1,300 in July to 1000 in August requires a layoff (and related costs) of 300 units in August). The total hiring cost =$. (Enter your response as a whole number.) The total layoff cost =$. (Enter your response as a whole number.) The total inventory carrying cost =$. (Enter your response as a whole number.) The total stockout cost =$. (Enter your response as a whole number. ) The total cost, excluding normal time labor costs, for Plan B=$. (Enter your response as a whole number.)