The Sandhill Store had a beginning inventory on January 1 of 290 full-size strollers at a cost of $210 per unit. During the year, the following purchases were made: Unit Units Cost Mar. 15 78 $211 July 20 60 210 Sept. 4 25 208 Dec. 2 10 10 203 At the end of the year, there were 35 units on hand. The Sandhill Store uses a periodic inventory system. (a) Determine the cost of goods available for sale. Cost of goods available for sale $