Assume The Salvation Army purchased a building for $900,000 and depreciated it on a straight-line basis over 30 years. The estimated residual value was $100,000. After using the building for 10 years, the Salvation Army realized that the building will remain useful for only 10 more years. Starting with the 11th year, the Salvation Army began depreciating the building over the newly revised total life of 20 years and decreased the estimated residual value to $75,000. What is the effect on depreciation expense on the building for years 11 and 12?