·General Motors Company purchased a building on January 1, 2023, for $20,000,000. The building has an estimated useful life of 40 years and a residual value of $2,000,000. Using the straight-line method, calculate the annual depreciation expense for the building. If General Motors Company sold the building on December 31, 2024, for $19,200,000, record the journal entry to recognize the sale and calculate the gain or loss on disposal.