***I have found the correct answers for everything but the three blanks in part b. Thank you

Upper Division of Lower Company acquired an asset with a cost of $570,000 and a four-year life. The cash flows from the asset, considering the effects of inflation, were scheduled as follows YearCash Flow $230,000 260,000 280,000 310,000 The cost of the asset is expected to increase at a rate of 10 percent per year beginning-of-year gross book values for the investment base. Ignore taxes. each year. Performance measures are based on Required: a. What is the ROI for each year of the asset's life, using a historical cost approach? (Enter your answers as a percentage rounded to1 decimal place (i.e., 32.1).) ROI Year 1 15.4 | % Year 2 , 20.6 % Year 3 24.1 % Year 4 , 29.4 % b. What is the ROl 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? (Enter your answers as a percentage rounded to 1 decimal place (i.e., 32.1). ROI Year 1 Year 2 Year 3 Year 4 15.4 1%