On 13 February 20X5, Reekwa Company purchased an office tower for $30 million. The office is a mixed-use property: it is owner-occupied and includes rental units. The fair value of the building on 31 December 20X6 is $30.4 million and $26.9 million on 31 December 20X8.

At the time of purchase, the office tower has a remaining useful life of 25 years, and is amortized on a straight-line basis.

Required:

1. Should the office tower be considered property, plant, and equipment or investment property? Explain the accounting requirements for each.

2. Assume the property is determined to be PPE, and management applies the elimination method for the revaluation model. Prepare the required journal entries for the revaluation of the office tower in 20X6 and 20X8.

3. Assume the property is determined to be PPE, and management applies the proportionate method for the revaluation model. Prepare the required journal entries for the revaluation of the office tower in 20X6 and 20X8.