On January 1, 20x3, Sunny Company determined that a revision in the estimate associated with the depreciation of storage facilities was appropriate. The facilities, purchased on January 1, 20x1 for P6,000,000 had been depreciated using the straight line method with residual value of P600,000 and useful life of twenty years. The entity had determined that the remaining useful life is ten years and residual value is P800,000. What is the carrying amount of the storage facilities on December 31,203