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

Oct. 1- Inventory 310 units at $12

Oct.13 -Sale 160 units

Oct. 22 - Purchase 350 units at $15

Oct. 29 - Sale 400 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. $ _____fill in the blank

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. $ ____ fill in the blank

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.

$ _____ fill in the blank