keys printing plans to issue a $1,000 par value, 20-year noncallable bond with a 7.00% annual coupon, paid semiannually. the company's marginal tax rate is 40.00%, but congress is considering a change in the corporate tax rate to 30.00%. assuming key's new bonds are issued at par, how much would the component cost of debt used to calculate the wacc change if the new tax rate was adopted?
