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Perpetual inventory using weighted average

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

Date Line Item Description Value

Oct. $1$ Inventory $330$ units at $$11$

Oct. $13$ Sale $160$ units

Oct. $22$ Purchase $330$ units at $$12$

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 $1$ of $1$$

$11\mathrm{.}50$

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.

fill in the blank $1$ of $1$$

$4,600$

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 $1$ of $1$$

$5,775$