Obihiro Group has equipment with an original cost of ¥500,000,000

Obihiro Group has equipment with an original cost of ¥500,000,000 and related accumulated depreciation of ¥100,000,000 on December 31, 2019. The fair value of the equipment at December 31, 2019, is ¥650,000,000. The equipment has a useful life of 4 years remaining after December 31, 2019, with no residual value. Obihiro uses the straight-line method of depreciation. Prepare the entry to
(a) Record the revaluation of the equipment on December 31, 2019,
(b) Record depreciation on the equipment at December 31, 2020.