On January 2, 2017, Ares Enterprises reports balances in the Equipment account of $32,000 and Accumulated Depreciation-Equipment account of $9,000. The equipment had an original residual value of $2,000 and a 10-year useful life. Ares uses straight-line depreciation for equipment. On this date, the company decides that the equipment has a remaining useful life of only four years with the same residual value. Calculate the revised annual depreciation.