In $1972,$ land was purchased for $$110,000$ and an office building constructed for $$500,000.$ The building was assigned a useful life of $27\mathrm{.}5$ years and a salvage value of zero. In $2012,$ the property was sold for $$150,000,$ with $$110,000$ assigned to land value and $$40,000$ for the value of the building. How should the sale of the building be posted to the books?