Depreciation calculation methods Millco Inc. acquired a machine that cost $$1,800,000$ early in $2022.$ The machine is expected to last for eight years, and its estimated salvage value at the end of its life is $$180,000.$

Required:

Using straight$-$line depreciation, calculate the depreciation expense to be recognized in the first year of the machine$$s life and calculate the accumulated depreciation after the fourth year of the machine$$s life.

Using declining$-$balance depreciation at twice the straight$-$line rate, calculate the depreciation expense for the third year of the machine$$s life.

What will be the net book value of the machine at the end of its eighth year of use before it is disposed of$,$ under each depreciation method?