Please explain step by step.

Prepare the entry in January 2018 to record the revision in the estimated life of the building, if necessary. (Tfno entry is required, select "No entry" for the account titles and enter 0 for the announts. Credit account es are automatically indented when a is entered. Do not indent manually.) Account Titles and Explanation Debit Credit SHOW LIST OF ACCOUNTS what amount of depreciation should be charged for the year 2018? Depreciation for the year 2018 (Assume the cost of the old roof is removed) Depreciation for the year 2018 (Assume the cost of the new roof is debited to accumulated depreciation equipment s