136. A double-declining balance rate for calculating depreciation expense is determined by doubling the
straight-line rate. Assuming that an asset has a useful life of 25 years, determine the rate to be used if using the
double-declining balance method.
137. Copy equipment was acquired at the beginning of the year at a cost of $72,000 that has an estimated
residual value of $9,000 and an estimated useful life of 5 years. It is estimated that the machine has an
estimated 1,000,000 copies. This year 315,000 copies were made. Determine the (a) depreciable cost, (b)
depreciation rate, and (c) the units-of-production depreciation for the year.
138. A machine costing $57,000 with a 6-year life and $54,000 depreciable cost was purchased January 1,
2015. Compute the yearly depreciation expense using straight-line depreciation.
139. A machine costing $85,000 with a 5-year life and $5,000 residual value was purchased January 2,
2011. Compute depreciation for each of the five years, using the declining-balance method at twice the
straight-line rate.
140. Computer equipment was acquired at the beginning of the year at a cost of $63,000 that has an estimated
residual value of $3,000 and an estimated useful life of 5 years. Determine the (a) depreciable cost (b)
double-declining-balance rate, and (c) double-declining-balance depreciation for the first year.