Beginning inventory, purchases, and sales for WCS12 are as follows:

Assuming a perpetual inventory system and using the weighted average method, determine
(a) The weighted average unit cost after the October 22 purchase,
(b) The cost of goods sold on October 29, and
(c) The inventory on October 31?

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Item Beta Units Purchase Purchase Purchase1 Cost $100 120 140 $360 $120 ($3603 units) Apri 2 15 20 Total Average cost per unit