Banter Co purchased an office building on 1 January 20X1. The building cost was $1,600,000 and this was depreciated by the straight line method at 2% per year, assuming a 50-year life and nil residual value. The building was revalued to $2,250,000 on 1 January 20X6. The useful life was not revised. The excess depreciation charge will be transferred from the revaluation surplus to retained earnings each year. The company's financial year ends on 31 December. What is the balance on the revaluation surplus at 31 December 20X6?* $632000 (2 marks)​