Sauer Milk Inc. wants to determine the minimum cost of capital point for the firm. Assume it is considering the following financial plans Cost (aftertax) Weights Plan A Debt Preferred stock Common equity Plan B Debt Preferred stock Common equity Plan C Debt Preferred stock Common equity Plan D Debt Preferred stock Common equity 40% 8.0 10% 85 20% 75 30% 65 40% 12.0 4.2% 8.2 13.0 5.0% 10.7 6 9.6 13.0% 11.6 11.6 a-1. Compute the weighted average cost for four plans. (Do not round intermediate calculations. Input your answers as a percent rounded to 2 decimal places.) Weighted Cost Plan A Plan B Plan C Plan D