SheffieldCompany purchased equipment for $237,200on October 1, 2020. It is estimated that the equipment will have a useful life of8years and a salvage value of $14,000. Estimated production is36,000units and estimated working hours are20,000. During 2020,Sheffielduses the equipment for500hours and the equipment produces1,000units.

Compute depreciation expense under each of the following methods.Sheffieldis on a calendar-year basis ending December 31