Answer:
Journal entry to record depletion expense
Depreciation expense $280,000 (debit)
Accumulated depreciation $280,000 (credit)
Step-by-step explanation:
The coal mine is an economic resource controlled (ownership of risks and benefits) by Last year, Mountain Top, Inc as a result of past event (purchase transaction) from which economic benefits are expected to flow into the business (cash from sale of minerals).Therefore the coal mine is an asset!
The asset is being depleted as it is being used. This is called depreciation.
Depreciation expense in this case is calculated as :
Depreciable Account × Current harvest as a percentage of total estimated tons available
(900000-100000)× 70000/200000 = $280,000