Use the cash flows and competitive spreads shown in the table below. Assume the dividend payout ratio each yeat is 100% 0. Calculate the year-by-year book and economic profitability for investment in polyzone production Assume straight-line depreciation over 10 years and a cost of capital of 10%. (Negotive onswers should be indicoted by o minus sign. Leave no cells blonk - be certain to enter "O" wherever required. Do not round intermediote calculotions. Enter your income answers in millions rounded to 2 decimol places and enter the rate of return as a percent rounded to 2 decimal places.) -1. What is the economic rate of retum? (Do not round intermediate calculations. Enter your onswer as a percent rounded to 2 decimal places.) b2. Now compute the steady-state book rate of return (ROl) for a mature company producing polyzone. Assume no growth and competitive spreads. (Negotive answers should be indicated by o minus sign. Do not round intermediate calculations. Enter your answer as a percentrounded to 2 decimal pleces.)