Perpetual inventory using weighted average

Beginning inventory, purchases, and sales for WCS$12$ are as follows:

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.

$

$11\mathrm{.}1$

$$ 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.

$

When the average cost method is used in a perpetual inventory system, an average unit cost for each item is computed each time a

purchase is made. This unit cost is used to determine the cost of each sale until another purchase is made and a new average is