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An electronic parts retailer operates under a periodic review system. The company has an average demand of 420 units per week for an item it sells. The standard deviation of demand is 350 units. The lead time for the item is 5 weeks. The time between reviews is 2 weeks. Assume that the company works with a target inventory of 8,000 units and the current inventory position is 4,877 . What is the order quantity? Please round your result to the closest whole number