Skyline, Inc. purchased a portfolio of trading securities during the current fiscal year. The cost and fair value of this portfolio on December 31 were as follows:

Name	Number of Shares	Total Cost	Total Fair Value
Alcon, Inc.	1,200	$16,000	$15,000
Easton Company	700	23,000	21,500
Panther Company	300	9,000	9,200
Total		$48,000	$45,700

(a) Provide the journal entry to record the adjustment of the trading security portfolio to fair value on December 31. (Show Work)