Farmer Company purchased machine on January $1,$ Year $1$ for $$51,000.$ The machine is estimated to have a $5-$year life and a salvage value of $$4,000.$ The company uses the straight$-$line method.At the beginning of Year $4,$ Farmer revised the expected life to eight years. What is the annual amount of depreciation expense for each of the remaining years in the machine's life?