On January 1, 2020, Zade Manufacturing Company purchased a machine for $40,000. The company expects to use the machine for 24,000 hours over the next 6 years. The estimated salvage value of the machine at the end of the sixth year is $4,000. The company used the machine for 3,600 hours in 2020 and 5,000 hours in 2021. Calculate the depreciation expense and accumulated depreciation for the years 2020 and 2021 using straight-line, units-of-production, and double declining balance methods of depreciation? Show work

Straightline	2020		2021
Depreciation Expense
Accumulated depreciation
Units of Production	2020		2021
Depreciation Expense
Accumulated depreciation
Double declining balance	2020		2021
Depreciation Expense
Accumulated depreciation