College building is 10 years old and has an estimated useful life of 40 years. The building was built to accommodate 4,000 students but it is expected in the future the student enrollment will only be 1,000. Its current book value is $30 million. Should Q College account for Asset Impairment? Which is the most effective method? No Yes. Restoration Approach Yes, Service Units Approach Yes. Deflated Depreciated Replacement Cost Approach