Answer:
Units of production method
Explanation:
The formula to compute the depreciation expenses under the units-of-production method:
Depreciation per miles or hours = (Original cost - residual value) ÷ (estimated production)
For first-year or for another year, the depreciation expense would be
= Production units in a year × depreciation per miles or per hour
So, for computing the depletion, the unit of production method is used