Computing Double-Declining-Balance Depreciation

DeFond Company purchased equipment for $75,000. For each of the following sets of assumptions, prepare a depreciation schedule (all years) for this equipment assuming that DeFond uses the double-declining-balance depreciation method.

Useful life	Residual Value
a. Four years	$12,000
b. Five years	$4,500
c. Ten years	$1,500

Round answers to the nearest whole number. Use rounded answers for subsequent calculations.