Question

On January 1, 2018, Canseco Plumbing Fixtures purchased equipment for $56,000. Residual value at the end of an estimated four-year service life is expected to be $2,000. The company expects the machine to operate for 15,000 hours. The machine operated for 3,500 and 4,300 hours in 2018 and 2019, respectively.

a. Calculate depreciation expense for 2018 and 2019 using straight line method.
b. Calculate depreciation expense for 2018 and 2019 using sum-of-the-years'-digits method.
c. Calculate depreciation expense for 2018 and 2019 using double-declining balance method.
d. Calculate depreciation expense for 2018 and 2019 using units-of-production method (using machine hours).

Answer 1

a) Straight line method :

Depreciation expense = (56000-2000/4) = 13500 per year

2018 dep = 13500

2019 dep = 13500

b) Sum of year digit method :

Sum of year digit = 4+3+2+1 = 10

2018 dep = (56000-2000)*4/10 = 21600

2019 dep = (56000-2000)*3/10 = 16200

c) Double decline balance method :

Double decline rate = 100/4*2 = 50%

2018 dep = 56000*50% = 28000

2019 dep = 28000*50% = 14000

d) Units of production method :

Depreciation rate = (56000-2000)/15000 = 3.6 per hour

2018 dep = 3.6*3500 = 12600

2019 dep = 3.6*4300 = 15480