An asset was purchased for $300,000. It had an estimated salvage value of $60,000 and an estimated useful life of 10 years. After 5 years of use, the estimated salvage value is revised to $48,000 but the estimated useful life is unchanged. Assuming straight-line depreciation, depreciation expense in Year 6 would be $36,000 $25,200 $18,000 $26,400