Inventory records for Herb's Chemicals revealed the following: 23 March 1, 2021, inventory: 1,900 gallons @ $9.0 per gallon = $17,100 2.5 points Purchases: Mar. 10 Mar. 16 Mar. 23 8 01:47:44 780 gals @ $9.05 980 gals @ $9.10 780 gals @ $9.15 Sales: Mar. 5 Mar. 14 Mar. 20 Mar. 26 580 gals 880 gals 680 gals 880 gals Skipped The ending inventory under a periodic inventory system assuming average cost (rounding unit cost to three decimal places) is: Multiple Choice $12,881. O $12.779. O Multiple Choice $12,881. $12,779. $12,861. $12,851