At the beginning of $2019,$ Blue Stone Manufacturing $($BSM$)$ purchased a new machine for its assembly line at a cost of $$600,000.$ The machine has an estimated useful life of $10$ years and estimated residual $($salvage$)$ value of $$50,000.$ Under the accelerated method, how much depreciation would BSM record in $2020?$ The

acceleration factor is $2$x$.$