Assume Interstellar Communications Ltds balance sheet includes the following assets under Property, Plant, and Equipment: Land, Buildings, and Motor-Carrier Equipment. Interstellar Communications has a separate accumulated depreciation account for each of these assets except land. Further, assume that Interstellar completed the following transactions:

Jan 2: Sold motor-carrier equipment with accumulated depreciation of $67,000 (cost of $130,000) for $70,000 cash. Purchased similar new equipment with a cash price of $176,000.

July 3: Sold a building that had cost $650,000 and had accumulated depreciation of $145,000 through December 31 of the preceding year. Depreciation is computed on a straight-line basis. The building had a 40-year useful life and a residual value of $250,000. Interstellar received $100,000 cash and a $400,000 note receivable.

Oct 29 Purchased land and a building for a single price of $420,000. An independent appraisal valued the land at $150,000 and the building at $300,000.

Dec 31: Recorded depreciation as follows:

New motor-carrier equipment has an expected useful life of six years and an estimated residual value of 5% of cost. Depreciation is computed on the double-diminishing-balance method.

Depreciation on buildings is computed by the straight-line method. The new building carries a 40-year useful life and a residual value equal to 10% of its cost.