I can't quite figure this question out. How do you prepare the adjusted trail balance for January 31, Year 1?

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On January 1, Year 1, the general ledger of a company includes the following account balances:

Accounts	Debit			Credit
Cash	$	24,300
Accounts Receivable		42,500
Allowance for Uncollectible Accounts				$	2,700
Inventory		42,000
Land		79,600
Accounts Payable					29,200
Notes Payable (8%, due in 3 years)					42,000
Common Stock					68,000
Retained Earnings					46,500
Totals	$	188,400		$	188,400

The $42,000 beginning balance of inventory consists of 420 units, each costing $100. During January Year 1, the company had the following inventory transactions:

January		3		Purchase 1,050 units for $115,500 on account ($110 each).
January		8		Purchase 1,150 units for $132,250 on account ($115 each).
January		12		Purchase 1,250 units for $150,000 on account ($120 each).
January		15		Return 160 of the units purchased on January 12 because of defects.
January		19		Sell 3,600 units on account for $576,000. The cost of the units sold is determined using a FIFO perpetual inventory system.
January		22		Receive $529,000 from customers on accounts receivable.
January		24		Pay $359,000 to inventory suppliers on accounts payable.
January		27		Write off accounts receivable as uncollectible, $2,100.
January		31		Pay cash for salaries during January, $110,000.

The following information is available on January 31, Year 1.

1. At the end of January, the company estimates that the remaining units of inventory are expected to sell in February for only $100 each.
2. The company estimates future uncollectible accounts. The company determines $5,200 of accounts receivable on January 31 are past due, and 30% of these accounts are estimated to be uncollectible. The remaining accounts receivable on January 31 are not past due, and 5% of these accounts are estimated to be uncollectible. (Hint: Use the January 31 accounts receivable balance calculated in the general ledger.)
3. Accrued interest expense on notes payable for January. Interest is expected to be paid each December 31.
4. Accrued income taxes at the end of January are $13,500.

Exercise 6-21B Part 3

a. At the end of January, the company estimates that the remaining units of inventory are expected to sell in February for only $100 each. b. At the end of January, $5,200 of accounts receivable are past due, and the company estimates that 30% of these accounts will not be collected. Of the remaining accounts receivable, the company estimates that 5% will not be collected. c. Accrued interest expense on notes payable for January. Interest is expected to be paid each December 31. d. Accrued income taxes at the end of January are $13,500.

3. Prepare an adjusted trial balance as of January 31, Year 1.