How do you find goodwill (remainder)

E 2-8 Calculate investment balance four years after acquisition Ray Corporation owns a 40 percent interest in the outstanding common stock of Ton Corporation, having acquired its interest for $4,800,000 on January 1, 2011, when Ton's stockholders' equity was $8,000,000. The fair value/book value differential was assigned to inventories that were undervalued by $200,000 and sold in 2011, to equipment with a four-year remaining life that was undervalued by $400,000, and to goodwill for the remainder The balance of Ton's stockholders' equity at December 31, 2014, is $11,000,000, and all changes therein are the result of income earned and dividends paid. E D