Periodic Inventory by Three Methods

Dymac Appliances uses the periodic inventory system. Details regarding the inventory of appliances at January 1, purchases invoices during the next 12 months, and the inventory count at December 31 are summarized as follows:

Purchases Invoices
Model	Inventory, January 1		1st		2nd		3rd		Inventory Count, December 31
A10	__		4 at	$ 29	4 at	$ 32	4 at	$ 35	5
B15	8 at	$ 93	4 at	84	3 at	90	6 at	97	7
E60	3 at	69	3 at	59	15 at	62	9 at	64	5
G83	7 at	228	6 at	236	5 at	246	10 at	245	9
J34	12 at	81	10 at	83	16 at	90	16 at	91	13
M90	2 at	119	2 at	121	3 at	139	3 at	141	5
Q70	5 at	161	4 at	171	4 at	176	7 at	181	8

Required:

3. Determine the cost of the inventory on December 31 by the weighted average cost method.