ArcadiaH S, purchasedequipment for 510,000 which was estimated to have a useful life of 10 years with a salvage value of 10,000attheendof thattime.Depreciation hasbeenrecorded for5year sonastraight- linebasis. In 2015(year6), itisdeterminedthatthetotalestimatedusefullifeshouldbe15year swithasal vagevalueof5,000 at the end of that time. Instructions: Calculate the depreciation expense for 2015. Aa