I very coast inc purchased a van on January 1 2015 For $800,000 Estimated life of the van is 5 years and its estimated residual value was $90000. Iveycoast uses the straight line method of depreciation. At the beginning of 2017 the company revised the total estimated life of the asset from 5 years to 4 years. The estimated residual value remains the same as earlier estimated. Calculate the depreciation expense for the year 2017