2. Find the impact of different payout levels on the need for extemal funds by 2021. This abbreviated approach uses the total cash-flow figures (that is, for 2015 through 2021) found in the right-hand column of case Exhibit 26.8. To find the amount of new debt, use the basic sources-and-uses-of-funds identity, as used in case Exhibit 26.8. What are the implications of different payout levels for Rockboro's capital structure and unused debt capacity? Rockboro Machine Tools Corporation (dollars in millions)