Iverycoast Inc. purchased a van on January 1, 2015, for $800,000. Estimated life of the van was 5 years, and its estimated residual value was $90,000. Iverycoast 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 remained the same as estimated earlier. Calculate the depreciation expense for the year 2017.