Banko Inc, manufactures sporting goods. The following information applies to a machine purchased on January 1, 2018: Purchase price $ 54,800 Delivery cost $ 6,000 Installation charge $ 4,000 Estimated life 5 years Estimated units 152,000 Salvage estimate $ 4,000 During 2018, the machine produced 48,000 units and during 2019, it produced 50,000 units. Required Determine the amount of depreciation expense for 2018 and 2019 using each of the following methods: 2018 2019 a. Straight-line b. Double-declining-balance c. Units of production