The following information is related to December 31, 2016 balances.

	Accounts receivable	$1590000
	Allowance for doubtful accounts (credit)	(103000)
	Cash realizable value	1120000

During 2017 sales on account were $373000 and collections on account were $212000. Also, during 2017 the company wrote off $20600 in uncollectible accounts. An analysis of outstanding receivable accounts at year end indicated that bad debts should be estimated at $144000. The change in the cash realizable value from the balance at 12/31/16 to 12/31/17 was:

$512400 increase.

$489000 increase.

$487000 increase.

$466400 increase.