Perpetual Inventory Using Weighted Average

Beginning inventory, purchases, and sales for WCS12 are as follows:

Oct. 1 Inventory310 units at $12

13 Sale150 units

22 Purchase340 units at $13

29 Sale400 units

a. Assuming a perpetual inventory system and using the weighted average method, determine the weighted average unit cost after the October 22 purchase. Round your answer to two decimal places. $per unit

b. Assuming a perpetual inventory system and using the weighted average method, determine the cost of goods sold on October 29. Round your "average unit cost" to two decimal places. $

c. Assuming a perpetual inventory system and using the weighted average method, determine the inventory on October 31. Round your "average unit cost" to two decimal places. $