ation purchased equipment costing $$270,000$ on January $1,2021.$ At that time the useful life of the equipment was estimated to be $12$ years and the residual value was estimated to be $$15,000.$ Depreciation up to December $31,2022$ has been recorded using the straight$-$line method and the company operates on a calendar year basis. On January $1,2023,$ the estimated useful life was revised to a total of $10$ years and the residual value was revised to $$16,000.$ Instructions Calculate depreciation expense for $2023.($Show calculations.$)$