Which computation of the Cost of Goods Sold (COGS) for manufacturer is correct: Beginning Finished goods Inv + Cost of Purchase - End. Finished goods Inv = COGS Beginning merchandise Inv. + End. Merchandise Inv. - Cost of Purchase = COGS Beginning merchandise Inv. + Cost of Purchase - End. Merchandise Inv. = COGS Beginning Finished goods Inv + Cost of goods Manufactured - Ending Finished goods Inv = COGS