Jackal Energy purchased a transport truck on January 1, 2020, for $305,200 cash. Its estimated useful life is five years or 320,000 kilometres with an estimated residual value of $52,400. Required: Calculate depreciation expense for the year ended December 31, 2020, using each of the following methods: (Do not round Intermediate calculations.) a. Straight-line b. Double-declining-balance c. Units-of-production (assume 30,000 kilometres were actually driven in 2020). Depreciation Expense Method a. Straight-line b. Double-declining-balance c. Units-of-production Analysis component: Which depreciation method will produce the highest profit for Jackal in 2020? Highest profit in 2020