When originally purchased, a vehicle had an estimated useful life of 9 years. The vehicle cost $52,000 and its estimated residual value is $4,000. After 3 years of straight-line depreciation, the assets total estimated useful life was revised from 9 years to 6 years and there was no change in the estimated residual value. The Depreciation Expense in year 4 is:

$7,725

$10,667

$8,000

$2,053