A machine costing $ with a fouryear life and an estimated $ salvage value is installed in Luther Company\'s factory on January The factory manager estimates the machine will produce units of product during its life. It actually produces the following units: in Year in Year in Year in Year The total number of units produced by the end of Year exceeds the original estimatethis difference was not predicted. Note: The machine cannot be depreciated below its estimated salvage value.

Required:

Compute depreciation for each year and total depreciation of all years combined for the machine under each depreciation method.

Note: Round your per unit depreciation to decimal places. Round your answers to the nearest whole dollar.