Buffalo Company purchased machinery on January 1, 2017, for $100,000. The machinery is estimated to have a salvage value of $10,000 after a useful life of 8 years. X] Your answer is incorrect. Try again. Compute 2017 depreciation expense using the sum-of-the-years'-digits method. Depreciation expense Depreciation expense C x Your answer is incorrect. Try again. Compute 2017 depreciation expense using the sum-of-the-years'-digits method, assuming the machinery was purchased on April 1, 2017. (Round answer to 0 decimal places, e.g. 5,125.) Depreciation expense