Please answer Part E of the question

Problem 2 (20 points): The Dilworth Electric Store carries a brand of headphones with following characteristics: Demand = 25000 unit per year Ordering charge = $160 per order Inventory carrying cost = 10% per year Headphone item cost = $80 Number of working days per year = 250 days a(4). Determine the economic order quantity for the item. b(3). What is the average inventory level? c(3). What is the time in working days) between orders? d(4). What is the total annual ordering and carrying cost? e(6). What is the effect on EOQ and the total annual ordering and carrying cost if next year the store has a demand of additional (extra) 5000 units, and the ordering cost is reduced from $160 to $48 per order? Please be precise and give all details