Plummer Industries purchased a machine for $30,800 and is depreciating it with the straight-line method over a life of 8 years, using a residual value of $2,800. At the beginning of the sixth year, an extraordinary repair was made costing $2,500, the estimated useful life was extended to 13 years, and no change was made to the estimated residual value.

Calculate depreciation expense for year 6. (Do not round intermediate calculations.)