Units	Cost per unit	Total cost
Beg. Inventory	26	$97	$2,522
Purchase	45	$100	$4,500
Sold	15
Purchase	20	$104	$2,080
Purchase	50	$105	$5,250
Sold	60
Purchase	30	$108	$3,240
Sold	50

Calculate COGS (Cost of goods sold) and Ending Inventory using FIFO, LIFO, and Average cost methods using periodic methods.

Please show work and steps, full math