REI sells snowboards. Assume the following information relates to REl's purchases of snowboards during September. During the same month, $106$ snowboards were sold. REI uses a periodic inventory system.

$\backslash$table$[[$Date$,$Explanation,Units,Unit Cost,Total Cost$],[$Sept$.1,$Inventory,$15,$$$106,$$ $1,590],[$Sept$.12,$Purchases,$46,109,5,014],[$Sept$.19,$Purchases,$54,110,5,940],[$Sept$.26,$Purchases,$21,111,2,331],[$Totals$,136,,$$$14,875]]$ Compute the costs of goods sold for the month using fifo, lifo, and average cost methods