During 2021, Cinnamon Buns Co. (CBC) recorded the following transactions relating to its inventories (listed in chronological order) January 1 May 10 July 22 November 3 Beginning inventory 70 units @ $55 Purchase Sale Purchase 40 units @ $60 90 units @ 105 70 units @ $65 If CBC uses the perpetual weighted average method to account for its inventory, its cost of goods sold for the year ended at December 31, 2021 should be: Multiple Choice $5,112 $6,750 $5,400 $7,065