If a fixed asset, such as a computer, were purchased on January 1st for $2,190 with an estimated life of 7 years and a salvage or residual value of $187, the journal entry for monthly expense under straight-line depreciation is Oa. Depreciation Expense Accumulated Depreciation Depreciation Expense Ob. Accumulated Depreciation Oc. Depreciation Expense Od Accumulated Depreciation Accumulated Depreciation Depreciation Expense. 23.85 23.85 286.14 286.14 286.14 286.14 23.85 23.85