please solve without excel

A company purchased a chiller for its HVAC system for $280,000 which is expected to decline by 35% each year thereafter. The expected useful life is 4 years. Using the given information: a) Calculate, showing equations used, the book value and depreciation amount after 1 year operation b) Record the remaining assets' annual book values and depreciation amounts in the first two columns of the table. c) If the company would like to have a salvage value of $20,000 at the end of the useful life, when does the company need to switch to a SL-depreciation model? (fill 3rd column in the table below supported with sample calculations) d) Show the new book values and depreciation amounts after switching in the last column of the table below Year Depreciation Amount Book Value New Depreciation amount in case of switching to SL model New Book value after switching 1 2 3 4 A company purchased a chiller for its HVAC system for $280,000 which is expected to decline by 35% each year thereafter. The expected useful life is 4 years. Using the given information: a) Calculate, showing equations used, the book value and depreciation amount after 1 year operation b) Record the remaining assets' annual book values and depreciation amounts in the first two columns of the table. c) If the company would like to have a salvage value of $20,000 at the end of the useful life, when does the company need to switch to a SL-depreciation model? (fill 3rd column in the table below supported with sample calculations) d) Show the new book values and depreciation amounts after switching in the last column of the table below Year Depreciation Amount Book Value New Depreciation amount in case of switching to SL model New Book value after switching 1 2 3 4