Fast owns 100% of Slow and had recorded $700,000 of goodwill from acquiring Slow many years ago. It is now 3 years later and the fair value of Slow is $1,300,000 and the book value of Slow inclusive of goodwill is $1,100,000. The implied value of goodwill is $650,000 and the book value of goodwill continues to be $700,000. What is the amount of goodwill impairment, if any.

B. Assume same facts as part a. except that the fair value of Slow is $900,000 instead of $1,300,000. What is the amount of goodwill impairment, if any.

Please solve with full explanations