Current Attempt in Progress Blue Spruce Corp. had a beginning inventory of 100 units of Product RST at a cost of $9 per unit. During the year, purchases were: Feb. 20 650 units at $10 Aug. 12 460 units at $12 May 5 590 units at $11 Dec. 8 100 units at $13 Blue Spruce uses a periodic inventory system. Sales totaled 1,510 units. (a) Determine the cost of goods available for sale. The cost of goods available for sale $ Calculate Average Cost. (Round answer to 3 decimal places, e.g. 5.125.) Average Cost $ e Textbook and Media List of Accounts Save for Later Attempts: 0 of 5 used Submit Answer (b)