Company \\( A \\) Company B and Company Chad purchased the same piece of machinery 2 vears ago at the beginning of 2022 . The machinery was originally purchased for \\( \\$ 106,000 \\) and had a residual value of \\( \\$ 4,000 \\). At the time of purchase the estimated useful life of the asset was 4 years or the equivalent useful life in units-of-production equal to 20,400 units. At the beginning of 2024, it was determined that the total useful life of the asset was 6 years rather than 4 years originally expected or the equivalent total units-ofproduction of 31,600 units. In addition, to the extended useful life of the machinery, the revised residual value is estimated at \\( \\$ 2,100 \\) The actual number of units produced in the first two years was 5,800 units per year. The actual production for 2024 was 7.500 units. Each of the companies uses a different method of depreciation with Company A using the straight-line method of depreciation, Company B uses the units-of-production method with a per unit depreciation charge rounded to the nearest cent and Company C uses the double diminishing-balance method. (a) Your answer is correct. Calculate the original depreciation expense amounts prior to the revision in estimates for each of Compamy A Company B and Company \\( C_{1} \\) for 2022 and 2023 . 6. Your answer is incorrect. Calculate the revised depreciation expense amount for 2024 for each of Company A, Company B and Company C. (Round depreciation per unit to 2 decimal ploces, eg. 1.25 and final answers to 0 decimal places, es. 125.)