Using the weighted average inventory method, what is the cost of goods sold? Purchase Total $ per Selling $ Units unit cost Units per unit Activity Purchased June 1 15 $12 $180 Purchased June 5 10 $13 $130 Purchased June 12 20 $14 $280 Total 45 $590 Sold on June 15 30 $25 $380 $410 $393 $400 $590