Becker Office Service purchased a new computer system on January 1, Year 1, for $33,000. It is expected to have a five-year useful life and a $3,900 salvage value. Becker Office Service expects to use the computer system more extensively in the early years of its life. a d. Assume that Becker Office Service sold the computer system at the end of the fourth year for $20,500. Compute the amount of gain or loss using each depreciation method. Amount Effect Straight-Line Double-Declining-Balance