At the beginning of 2013, P & D Enterprises had the following balances in its accounts:

Cash ..........$16,800
Inventory ........$4,000
Land .......... $2,000
Common stock ......$12,000
Retained earnings .....$10,800

During 2013, P & D Enterprises experienced the following events:

1. Purchased inventory costing $11,200 on account from Stone Company under terms 2y10, ny30. The merchandise was delivered FOB shipping point. Freight costs of $800 were paid in cash. 
2. Returned $600 of the inventory that it had purchased because the inventory was damaged in transit. The seller agreed to pay the return freight cost. 
3. Paid the amount due on its account payable to Stone Company within the cash discount period. 
4. Sold inventory that had cost $8,000 for $13,500. The sale was on account under terms 2y10, ny45. 
5. Received merchandise returned from a customer. The merchandise had originally cost $1,200 and had been sold to the customer for $2,100 cash. The customer was paid $2,100 cash for the returned merchandise. 
6. Delivered goods in Event 4 FOB destination. Freight costs of $800 were paid in cash. 
7. Collected the amount due on accounts receivable within the discount period. 
8. Sold the land for $3,500.
9. Recognized $500 of accrued interest revenue.
10. Took a physical count indicating that $6,500 of inventory was on hand at the end of the accounting period. 

Required: 

a. Identify each of these events as asset source (AS), asset use (AU), asset exchange (AE), or claims exchange (CE). Also explain how each event affects the financial statements by placing a + for increase, b - for decrease, or NA for not affected under each of the components in the following statements model. Assume that the perpetual inventory method is used. When an event has more than one part, use letters to distinguish the effects of each part. The first event is recorded as an example.

b. Record the events in general journal format. 
c. Open ledger T-accounts and post the beginning balances and the events to the accounts. 
d. Prepare a multi step income statement, statement of changes in stockholders equity, balance sheet, and statement of cash flows. 
e. Record and post the closing entries, and prepare a post closing trial balance.