10. : - 11 . 1 . 1 12 1 13 1 14 1 15 1 16 1. (Class Activity) A manufacturing firm has gone out on bid to procure a component. Expected demand is 700 units per month. The item can be purchased from either Vendor A or Vendor B. Their price lists are shown in the table. Ordering cost is $50, and annual holding cost per unit is 30% of the item's value. Vendor A Vendor B Quantity Unit Price Quantity Unit Price 1-499 $16.00 1-399 $16.10 500-999 15.50 400-799 15.60 1000+ 15.00 800+ 15.10 a) Calculate the economic order quantity. b) From which vendor is the optimal order quantity and what is the total annual inventory cost