In Accounting 200, how is Depletion calculated when you're only given the depreciated expense and how much is to be depleted. For example, in the previous question I was asked to find the accumulated depression/accumulated expense. I found that given the information the answer was 6000. In the next question I am asked to find the Accumulated Depletion/Depleted Expense from the given information of 3000 tons of coals were extracted from the reserves.