someone please explain! thank you.

Exeter Division of Wetherby Labs acquired an asset with a cost of $800,000 and a four-year life. The cash flows from the asset, considering the effects of inflation, were scheduled as follows: The cost of the asset ts expected to increase at a rate of 5 percent per year, compounded each year. Performance measures are based on beginning-of-year gross book values for the investment base. Ignore taxes. Required: a. What is the ROI for each year of the asset's life, using a his torical cost approach? b. What is the ROI for each year of the asset's life if both the investment base and depreciation are determined by the current cost of the asset at the start of each year? Complete this question by entering your answers in the tabs below. What is the ROI for each year of the asset's life if both the investment base and depreciation are determined by the current cost of the asset at the start of each year? Note: Enter your answers as a percentage rounded to 2 decimal places (1.e., 32.10). What is the ROI for each year of the asset's life, using a historical cost approach? What is the ROI for each year of the asset's life if both the investment base and depreciation are determined by the current cost o the asset at the start of each year? Complete this question by entering your answers in the tabs below. What is the ROI for each year of the asset's life, using a historical cost approach? Note: Enter your answers as a percentage rounded to 2 decimal places.(1.e., 32.10). What is the ROI for each year of the asset's life, using a historical cost approach? . What is the ROI for each year of the asset's life if both the investment base and depreciation are determined by the current cost of the asset at the start of each year? Complete this question by entering your answers in the tabs below. What is the ROI for each year of the asset's life if both the investment base and depreciation are determined by the current cost of the asset at the start of each year? Note: Enter your answers as a percentage rounded to 2 decimal places (1.e., 32.10)