13 At the beginning of 2016, Metatec Inc acquired Ellison Technology Corporation for $560 million. In addition to cash, recevables, and inventory, the following assets and their fair values were also acquired: Plant and equipment (deprec$146 million assets) Patent Goodwill 36 million 120 million The plant and equipment are depreciated over a 10 year useful life on a straight-line basis. There is no estimated residual value. The patent is estimated to have a 5-year useful life, no residual value, and is amortized using the straight-line methood At the end of 2018, a change in business climate indicated to management that the assets of Elison might be impaired. The following mounts have been determined Plant and equipment Undiscounted sum of future cash flows Fair value $76 million 56 million Patent: Undiscounted sum of future cash flows Fair value s 20 million 13 million Goodwil1: Fair value of Ellison Technology Corporation Fair value of Ellison's net assets (exc luding358 million goodwill) Book value of Ellison's net assets (including $406 million 43e million