The answer is P789,600. I just need the complete solution.

On January 1, 2021, CDE Company purchased an equipment for P1 .970.000- On this date, the equipment has an estimated economic useful life of 12 years and estimated residual value of P98,000. It is the company's policy to depreciate this type of equipment using a sum-of-years digit. On January 1, 2025, ODE Company made a review of the estimated life and salvage value of the equipment and the review revealed that the asset has a revised total life of 14 years and a residual value of P100,000. The company also changed the method of depreciation to straight-line. What is the carrying value of the asset on December 31, 2026