Computing Depreciation and Accounting for a Change of Estimate Lambert Company acquired machinery costing $110,000 on January 2, 2019. At that time, Lambert es- timated that the useful life of the equipment was 6 years and that the residual value would be $15,000 at the end of its useful life. Compute depreciation expense for this asset for 2019, 2020, and 2021 using the straight-line method double-declining-balance method Assume that on January 2, 2021, Lambert revised its estimate of the useful life to 7 years and changed its estimate of the residual value to $10,000. What effect would this have on deprecia- tion expense in 2021 for each of the above depreciation methods? . b