Sandhill Company Inc. had a beginning inventory of 105 units of Product RST at a cost of $7 per unit. During the year, purchases were: Sandhill Company uses a periodic inventory system, Sales totaled 1,500 units. (a) Determine the cost of goods available for sale. The cost of goods available for sale Calculate weighted-average cost per unit. (Round answer to 3 decimal places, e.g. 5.125.)