Calculating Accelerated Depreciation. Equipment costing $540,000 with an expected useful life of 10 years and an expected salvage value of $40,000, was purchased at the beginning of the year. Calculate the depreciation expense for the first five years using:

(a) Sum-of-the-years' digits method. Do not round until final calculation. Round answers to the nearest whole number.

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(b) Double-declining balance method (without straight-line switchover). Do not round until final calculation. Round answers to the nearest whole number.

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