Altura Corporation provides the following information related to its inventory during the month of August 2024: August 1 Inventory on hand3,600 units; cost $7.70 each. August 8 Purchased 18,000 units for $7.10 each. August 14 Sold 14,400 units for $13.60 each. August 18 Purchased 10,800 units for $6.60 each. August 25 Sold 13,400 units for $12.60 each. August 28 Purchased 5,600 units for $5.80 each. August 31 Inventory on hand10,200 units. Required: 1. Using calculations based on a perpetual inventory sy