GLIST GESP Sloan Corp had the following activity during the current year: Beginning Inventory January 1 1,000 units at $3.00 Purchased May 15 2,200 units at $3.20 Purchased November 30 4,000 units at $4.32 G Sales during the year were 5,400 units. Cost of Goods Sold using the weighted average costing method would be (do not round intermediate calculations): O $19,544 O $20,490 O $21,760 $27,000