The activity for a specific inventory item for the month of March was as follows: # of Per Unit October I inventory Purchases: October 5 October 13 October 15 Goods Available for Sale Sales: October 8 October 22 $2,160 $1,920 $1,980 Units 30 $2,040 100 60 90 280 Cost $28 110 120 230 4 Using weighted average cost under a periodic inventory system, what is the balance of Ending Inventory (round intermediate and final calculations to the nearest dollar) as at October 317 30 32 36 Total Cost $840 3,000 1,920 3.240 $2.000