Axme Corporation uses a weighted average perpetual inventory system August 2 11 units were purchased at 2 per unit August 18 16 units were purchased at 4 per unit August 29 13 units were sold?

To calculate the cost of goods sold (COGS) using the weighted average perpetual inventory system, first determine the total cost and total units available for sale. After the purchases on August 2 and August 18, there are 27 units available (11 units at $2 and 16 units at $4), totaling $78. The weighted average cost per unit is $78 / 27 units = $2.89. When 13 units are sold, the COGS is 13 units x $2.89 = $37.57.