Please help with fields that are in yellow. Thanks.

On January 2, 2017, the Matthews Band acquires sound equipment for concert performances at a cost of $67,800. The band estimates it will use this equipment for five years. It estimates that after five years it can sell the equipment for $2,000. Matthews Band uses straight-line depreciation but realizes at the start of the second year that due to concert bookings beyond expectations, this equipment will last only a total of three years. The salvage value remains unchanged. Compute the revised depreciation for both the second and third years. Book value at point of revision Remaining depreciable cost Depreciation per year for years 2 and 3