Jenks Corporation acquired Linebrink Products on January 1, 2015 for $8,000,000, and recorded goodwill of $1,500,000 as a result of that purchase. At December 31, 2015, Linebrink Products had a fair value of $6,800,000. The net identifiable assets of the Linebrink (excluding goodwill) had a fair value of $5,800,000 at that time. What amount of loss on impairment of goodwill should Jenks record in 2015? how to calculate impariment on goodwill?