On April 1, 2019, the KB Toy Company purchased equipment to be used in its manufacturing process. The equipment cost $48,000, has an eight-year useful life, and has no residual value. The company uses the straight-line depreciation method for all manufacturing equipment. On January 4, 2021, $12,350 was spent to repair the equipment and to add a feature that increased its operating efficiency. Of the total expenditure, $2,000 represented ordinary repairs and annual maintenance and $10,350 represented the cost of the new feature. In addition to increasing operating efficiency, the total useful life of the equipment was extended to 10 years. Required: Prepare journal entries for the depreciation for 2019 and 2020. Prepare journal entries for the 2021 expenditure. Prepare journal entries for the depreciation for 2021.