Accounting 101 HW Question?

On January 1, 2010, the Ewing Company ledger shows Equipment $36,000 and Aculated Depreciation $14,000. The depreciation resulted from using the straight line method with a useful life of 10 years and a salvage value of $2,000. On this date the company concludes that the equipment has a remaining useful life of only 2 years with the same salvage value. Compute the revised annual depreciation.