what are the tax effect and goal seeks in excel to break even in this problem that I have attached

A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Chapter: Problem: B C D E F G H 18 8 Schumann Shoe Manufacturer is considering whether or not to refund a $70 million, 10% coupon, 30-year bond issue that was sold 8 years ago. It is amortizing $4.5 million of flotation costs on the 10% bonds over the issue's 30-year life. Schumann's investment bankers have indicated that the company could sell a new 22-year issue at an interest rate of 8 percent in today's market. Neither they nor Schumann's management anticipate that interest rates will fall below 6 percent any time soon, but there is a chance that interest rates will increase. A call premium of 10 percent would be required to retire the old bonds, and flotation costs on the new issue would amount to $5 million. Schumann's marginal federal-plus-state tax rate is 40 percent. The new bonds would be issued 1 month before the old bonds are called, with the proceeds being invested in short-term government securities returning 5 percent annually during the interim period. Current bond issue data Par value Coupon rate Original maturity Remaining maturity Original flotation costs Call premium Tax rate Refunding data Coupon rate Maturity Flotation costs Time between issuing new bonds and calling old bonds (months) Rate earned on proceeds of new bonds before calling old bonds (annual) $70,000,000 10% 30 22 $4,500,000 10% 40% 8.0000% 22 $5,000,000 1 5% a. Perform a complete bond refunding analysis. What is the bond refunding's NPV? I 12/8/2012