Problem 8-9 Plan production for the next year. The demand forecast is spring, 20,200, summer, 10,800; fall, 14,600; winter, 18,000. At the beginning of spring you have 66 workers and 1,010 units in inventory. The union contract specifies that you may lay off workers only once a year, at the beginning of summer. Also, you may hire new workers only at the end of summer to begin regular work in the fall. The number of workers laid off at the beginning of summer and the number hired at the end of summer should result in planned production levels for summer and fall that equal the demand forecasts for summer and fall, respectively. If demand exceeds supply, use overtime in spring only, which means that backorders could occur in winter. You are given these costs: hiring, $90 per new worker, layoff, $180 per worker laid off; holding, S19 per unit-quarter; backorder cost, $11 per unit: straight-time labor, S11 per hour; overtime, $17 per hour. Productivity is 0.5 unit per worker hour, eight hours per day, 50 days per quarter. Find the total cost of this plan. Note: Hiring expense occurs at beginning of Fall. (Leave no cells blank - be certain to enter "0" wherever required.) Summer 10.800 Fall 14,600 Winter 18,000 Spring 20,200 1010 19190 38380 10800 21600 14600 29200 18000 36000 Forecast Beginning inventory Production required Production hours required Regular workforce Regular production Overtime hours Overtime production Total production Ending inventory Ending backorders Workers hired Workers laid off Spring Summer Winter Straight time Overtime Inventory Backorder Hiring Layoff Total Oolo $ 0 $ 0 $ 0 $ $ Total cost 0