Wholesale Hardware Consultants purchased a building for 620,000 and depreciated it on a straight-line basis over a 25-year period. The estimated residual value is $120,000. After using the building for 15 years,Wholesale realized that wear and tear on the building would wear it out before 25 years and that the estimated residual value should be $106,000. Starting with the 16th year, Wholesale began depreciating the building over a revised total life of 20 years using the new residual value. Journalize depreciation expense on the building for years 15 and 16