E2-15 Goodwill impairment Pop Corporation recorded goodwill in the amount of $200,000 in its acquisition of Son Company in 2016. Pop paid a total of $700,000 to acquire Son. In preparing its 2017 financial statements, Pop estimates that identifiable net assets still have a fair value of $500,000, but the total fair value of Son is now $640,000. Calculate the implied value of goodwill at December 31, 2017, and indicate how the change in value (if any) will affect Pop’s 2017 income statement.