Inventory records for Herb's Chemicals revealed the following: Beginning Inventory March1st Purchase March 10 Purchase March 16 Purchase March 23 Sales: March 5 sold 400 gallons March 14 sold 700 gallons 1,000 gallons @ $7.20 per gallon 600 gallons @ $7.25 per gallon 800 gallons @ $7.30 per gallon 600 gallons @ $7.35 per gallon March 20 sold 500 gallons March 26 sold 700 gallons Assume a periodic inventory system and average cost, the ending inventory would be closest to