BI owns a building which it uses as its offices, warehouse and garage. The land is carried as a

separate non-current tangible asset at the reporting date. BI has a policy of regularly revaluing its non-current tangible assets. The original cost of the building in October 20X2 was $1,000,000; it was assumed to have a remaining useful life of 20 years at that date, with no residual value. The building was revalued on 30 September 20X4 by a professional valuer at $1,800,000. What amount should be credited to the revaluation reserve on 30 September 20X4 for

the revaluation of the building?