Bonds Company purchased a new plant asset on April 1, 2011, at a cost of $355, 500. It was estimated to have a service life of 20 years and a salvage value of $30,000. Bonds' accounting period is the calendar year. a) Compute the depreciation for this asset for 2011 and 2012 using the sum-of-the-years -digits method. b) Compute the depreciation for this asset for 2011 and 2012 using the double-declining balance method