Perpetual Inventory Using Weighted Average

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

Oct. $1$ Inventory $350$ units at $$8$

$13$ Sale $150$ units

$22$ Purchase $300$ units at $$10$

$29$ 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.

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.