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Blossom Ltd. purchased a delivery truck on January 1, 2021, at a cost of $84,480. The truck is expected to have a residual value of $7,570 at the end of its 4 -year useful life. Blossom has a December 31 year end. Use the diminishing-balance method and assume the depreciation rate is equal to double the straight-line rate. Calculate the depreciation in total over the truck's life. Total depreciation expense $