Differentiate between the decreasing-charge depreciation methods and the special depreciation methods, and suggest the method that would result in the highest depreciation during the first year of operations. Imagine you are a manager at Delta Airlines and are giving a presentation to the Board of Directors concerning the best depreciation method to use for the purchase of twenty-five (25) new aircrafts. Explain to the Board the method that would result in the highest depreciation charge for the next five (5) years.