Greg's Bakery has the following accounts and amounts for 2013. Based on this information, what is Greg's average collection period for 2013?

Account Title	Balance
Accounts receivable, 1/1	35,000
Cost of goods sold	85,000
Sales revenue	230,000
Accounts receivable, 12/31	20,500
Total assets, 1/1	170,000
Inventory, 12/31	12,100
Total assets, 12/31	140,500
Inventory, 1/1	18,500