b. Calculate the ratio of the depreciation and amortization expense for 2017 reported in the consolidated Statements of Cash Flows Supplemental Financial Statement Data to the total cost (not net book value) of property plant and comment reported in the schedule. (Round your percentage answer to 1 decimal place. (eg 32.6)) Ratio % c. Based on the ratio calculated in part band the depreciation method being used by Campbell's, what is the average useful life being used for its depreciation calculation? (Round your answer to 1 decimal place.) Average of de years d. Assume that the use of an accelerated depreciation method for 2017 would have resulted in 25% more depreciation and amortization than reported by Campbell's at July 30, 2017 By what percentage would this have reduced the retained earnings amount reported at July 30, 2017? (Round your percentage answer to 1 decimal place. (eg 32,6) Anduct ondertus