000 with a four-year life and an estimated $20,000 salvage value is installed in A machine costing $216, Luther Company's factory on January 1. The factory manager estimates the machine will produce 490,000 units of product during its life. It actually produces the following units: 122,600 in 1st year, 124,300 in 2nd year, 120,600 in 3rd year, 132,500 in 4th year. The total number of units produced by the end of year 4 exceeds the original estimate this difference was not predicted. (The machine must not 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. (Round your per unit depreciation to 2 decimal places. Round your answers to the nearest whole dollar.) Straight-Line Depreciation Depreciation Expense Year 3 Total