On January 1, 2022, the Kingbird, Inc. general ledger shows Equipment $24,000 and Accumulated Depreciation $10,200. The depreciation resulted from using the straight-line method with a useful life of 8 years and a salvage value of $3,600. 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. Revised annual depreciation $ 13