Schrade Company bought a machine for $115,000 cash. The estimated useful life was four years, and the estimated residual value was $6,640. Assume that the estimated useful life in productive units is 129,000. Units actually produced were 52,000 in year 1 and 54,000 in year 2.

	depreciation expense for year 1	depreciation expense for year 2	net book value at the end of year 1	net book value at the end of year 2
method of depreciation	x	x	x	x
doube declining balance	57500	?????	57500	??????