Selected balance sheet information for the Wolf Company at November 30, and December 31, 2018, is presented below. The company uses the perpetual inventory system and all sales to customers are made on credit.

Nov. 30Dec. 31DebitsCreditsDebitsCreditsAccounts receivable9,7002,700Prepaid insurance4,7007,200Inventory6,7005,700Accounts payable11,70014,700Salaries and wages payable4,7002,700

The following cash flow information also is available:

1. Cash collected from credit customers, $77,000.
2. Cash paid for insurance, $4,700.
3. Cash paid to suppliers of inventory, $57,000 (the entire accounts payable amounts relate to inventory purchases).
4. Cash paid to employees for salaries and wages, $9,700.

Required:

1.Determine the following for the month of December:

2.Prepare summary journal entries to record the month's sales and cost of those sales.