21. Given the following information, calculate the weighted average cost of capital for Puppet Corporation. Percent of capital structure: Debt. ..................................... 55% Preferred stock ............................ 5 Common equity ............................ 40 Additional information: Bond coupon rate .......................... 8.5% Bond yield ................................ 7% Bond otation cost ......................... 2% Dividend. expected common ................ $1.50 Pn'ce, common ............................. $30.00 Dividend. preferred ........................ 596 Flotation cost. preferred .................... 3% Flotation cost, common ..................... 4% Corporate growth rate ...................... 6% Corporate tax rate .......................... 35% d a. Calculate the cost of capital assuming use of internally generated funds. b. Calculate the cost of capital assuming use of externally generated funds. c. Why is there a difference? Why does only common equity change