On September 6, 2017, Ali transport Co. purchased a new Truck for $680,000. The estimated life of the Truck was 20 years, with an estimated residual value of $80,000. Compute the depreciation on this Truck in 2017 and 2018 using the following methods. Apply the half-year convention. (If necessary, round to the nearest dollar.) 2017 2018 (i) Straight-line $________ $________ (ii) 200%-declining-balance $________ $________ (iii) 150%-declining-balance $________ $________