First, Drew company changed the total useful life from 10 years to 3 years on an asset purchased January 1, 2017, for $150,000. The asset was originally expected to be sold for $50,000 at the end of its useful life, but that amount also was changed in 2020 to $100,000. Drew company applies the straight-line method of depreciation to this asset.

Second, Drew company changed from FIFO to LIFO but is unable to recreate LIFO inventory layers. The FIFO 2020 beginning and ending inventories are $30,000 and $45,000, respectively. Drew company expects LIFO to render income numbers more useful for prediction. Third, Drew company changed to the straight-line method from the sum-of-years-digits method on equipment purchased for $650,000 on January 1, 2016. The equipment has a $100,000 residual value and 10-year useful life. These values were not changed. The change in depreciation method was made to provide a better measure of expired equipment cost because the annual benefits derived from the asset have been relatively constant. Fourth, an error in amortizing patents was discovered in 2020. Patents costing $510,000 on January 1, 2018, were amortized over their legal life (20 years). The accountant neglected to obtain an estimate of the patents economic life, which totals only 5 years. The entire cost of the patents was deducted for tax purposes when acquired.

Record the entries in 2020 necessary to make the accounting changes. Assume a tax rate of 30%.