Nanki Corporation purchased equipment on January 1, 2016, for $650,000. In 2016 and 2017, Nanki depreciated the asset on a straight-line basis with an estimated useful life of eight years and a $10,000 residual value. In 2018, due to changes in technology, Nanki revised the useful life to a total of six years with no residual value. What depreciation would Nanki record for the year 2018 on this equipment