Arcard Corporation tracks the number of units purchased and sold throughout each accotinting penod but appliesits inventory costing method at the end of each petiod as if it uses a petiodic inventory system. The following are the transactions for the month of July Colculate the cost of poods avillable for sale, ending inventory, and cost at goods sald f Aircard uses (a)FFO, (b) LifO, or (c) weighted average cost. (Round "Cost per Unit" to 2 decimal places)