There are different quantity based discounts for a product to be purchased if the order quantity is between 1-449, the unit prices 165. If the order quantity is between 500 999, the unit price is 1595. If the order quantity is between 1000-1499, the unit price is 15.85 if the order quantity is between 1500-3999, the unit price is 15,65. if the order quantity is between 4000-7999, the unit price is 15.4 5. if the order quantity is more than 8000, the unit price is 15.25 of the annual demand is 20000, the holding cost is 20% of the purchase cost and the order cost is 100 $ per order calculate the optimum order quantity, SHOW ALL OF YOUR WORKI Submit a picture or word fie. (20 p.)