On January 1, 2014, the Schuetze Company purchased a building for $280,000. The building had an estimated life of 10 years and an estimated residual value of $20,000. At the beginning of 2018, the following independent situations occur:

1. The company has been depreciating the building using straight-line depreciation. On January 1, 2018, the company estimates that the building has a remaining life of 4years (for a total of 8 years).

2. The company has been depreciating the building since it was acquired using double-declining balance depreciation. The company changes to the straight-line method on January 1, 2018.

3. The company failed to deduct salvage value in its depreciation computations. On January 1, 2018 it discovered the error. The tax rate is 30%.

Required

For each of the independent situations, prepare the journal entries related to the building depreciation for 2018.