Jackal Energy purchased a transport truck on January 1, 2017, for $367,900 cash. Its estimated useful life is five years or 390,000 kilometres with an estimated residual value of $55,900. Required: Calculate depreciation expense for the year ended December 31, 2017, using each of the following methods: a. Straight-line b. Double-declining-balance c. Units-of-production (assume 37,000 kilometres were actually driven in 2017). Analysis component: Which depreciation method will produce the highest profit for Jackal in 2017?