Endeavor Company purchased a depreciable asset for $1,200,000 in 1/1/2000. The estimated salvage value is $200,000, the estimated useful life is 8 years, and the estimated productive hours is 10,000 hours. Endeavor used the asset for 1,100 hours in 2000. (2) What would be the depreciation expense for 2001, if Endeavor uses sum of the years' digits method? (3) What would be the depreciation expense for 2002, if Endeavor uses double-declining method? (4) What would be the depreciation expense for 2000, if Endeavor uses activity method