Jackal Energy purchased a transport truck on January 1, 2014, for $238,400 cash. Its estimated useful life is five years or 240,000 kilometers with an estimated residual value of $46,400.

Required
Calculate depreciation expense for the year ended December 31, 2014, using each of the following methods:
a. Straight-line
b. Double-declining-balance
c. Units-of-production (assume 38,000 kilometers were actually driven in 2014).

Analysis Component: Which depreciation method will produce the highest net income for Jackal in 2014?