Exercise 11-3 Sheffield Company purchased a new plant asset on April 1, 2017, at a cost of $753,660. It was estimated to have a service life of 20 years and a salvage value of $63,600. Sheffield's accounting period is the calendar year Your answer is partially correct. Try again. Compute the depreciation for this asset for 2017 and 2018 using the sum-of-the-years'-digits method. (Round answers to O decimal places, e.g. 45,892.) Depreciation for 2017 Depreciation for 2018 49,290