Selected balance sheet information for the Wolf Company at November 30, and December 31, 2013, is presented below. The company uses the perpetual inventory system and all sales to customers are made on credit. Nov. 30 Dec. 31 Dr. Cr. Dr. Cr. Accounts receivable 10,600 3,600 Prepaid insurance 5,600 8,100 Inventory 7,600 6,600 Accounts payable 12,600 15,600 Wages payable 5,600 3,600 The following cash flow information also is available: a. Cash collected from credit customers, $86,000. b. Cash paid for insurance, $5,600. c. Cash paid to suppliers of inventory, $66,000 (the entire accounts payable amounts relate to inventory purchases). d. Cash paid to employees for wages, $10,600. Required: 1. Determine the following for the month of December: 2. Prepare summary journal entries to record the months sales and cost of those sales. (If no entry is required for a particular event, select "No journal entry required" in the first account field.)