Cuso Company purchased equipment on January 1, 2016, at a total invoice cost of $400,000. The equipment has an estimated salvage value of $10,000 and an estimated useful life of 5 years. What is the amount of accumulated depreciation at December 31, 2017, if the straight-line method of depreciation is used?
$156,000
$80,000
$160,000
$78,000