$1128000.
Net purchases=Purchases-Purchases returns
=(1,200,000-12000)=$1188000
Cost of goods sold=Beginning inventory+Net purchases-Ending inventory
=680,000+1188000-740,000
=$1128000.
A periodic inventory system is a form of inventory valuation where the inventory account is updated at the end of an accounting period rather than after every sale and purchase. The method allows a business to track its beginning inventory and ending inventory within an accounting period.
A perpetual inventory system inventory updates purchase and sales records constantly, particularly impacting Merchandise Inventory and the Cost of Goods Sold. A periodic inventory system only records updates to inventory and costs of sales at scheduled times throughout the year, not constantly.
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