Answer:
cost of goods sold = $2,310
Explanation:
beginning inventory 20 units at $30 each = $600
purchases during the month = 80 units at $31 each = $2,480
ending inventory = 25 units
using the weighted average cost method, each unit will be valued at ($600 + $2,480) / (20 + 80) = $3,080 / 100 units = $30.80
ending inventory = 25 units x $30.80 = $770
cost of goods sold = (100 - 25) x $30.80 = $2,310