Present Value of $1 Present Value of Annuity of $1 Margaret Daniels has the opportunity to invest $500,000 in a new venture. The projected cash flows from the venture are as follows. Use Appendix A and Appendix B. Margaret uses a 7 percent discount rate. Required: a1. Complete the table below to calculate NPV. Assume Margaret's marginal tax rate over the life of the investment is 15 percent. a2. Should Margaret make the investment? b1. Complete the table below to calculate NPV. Assume Margaret's marginal tax rate over the life of the investment is 20 percent. b2. Should Margaret make the investment? c1. Complete the table below to calculate NPV. Assume Margaret's marginal tax rate in years 1 and 2 is 10 percent and in years 3 and 4 is 25 percent. c2. Should Margaret make the investment