Sarto Co. purchased a $350,000 asset on 1 January 20X2. In 20X6, the company changed the total useful life from 20 years to 14 years. The asset was originally expected to be sold for $50,000 at the end of its useful life, but that amount was also changed in 20X6 to $20,000. Sarto applies the straight-line method of depreciation to this asset, and had claimed a full year of depreciation in the year of acquisition.

Required:
Calculate 20X6 depreciation expense.