Perpetual Inventory Using Weighted Average Beginning inventory, purchases, and sales for WCS12 are as follows:

Oct. 1 Inventory 350 units at $9

Oct. 13 Sale 180 units

Oct. 22 Purchase 330 units at $11

Oct. 29 Sale 300 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.

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.