Ma Hardware is the only hardware store in a remote area of Hong Kong. Some of Ma’s transactions during the current year are as follows:

Nov. 5 Sold lumber on account to Bemidji Construction, $13,390. The inventory subsidiary ledger shows the cost of this goods was $9,105.
Nov. 9 Purchased tools on account from Owatonna Tool Company, $3,800.
Dec. 5 Collected in cash the $13,390 account receivable from Bemidji Construction.
Dec. 9 Paid the $3,800 owed to Owatonna Tool Company.
Dec. 31

Ma’s personnel counted the inventory on hand and determined its cost to be $182,080. The accounting records, however, indicate inventory of $183,790 and a cost of goods sold of $695,222. The physical count of the inventory was observed by the company’s auditors and is considered correct.