3. Your firm currently has a capital structure of 50% debt and 50% equity. Your after-tax cost of debt is 8% and your cost of equity is 17%. You are considering decreasing your use of debt to 20%; if you do, your after-tax cost of debt will be 5% and your cost of equity will be 13%. (2) a. What is your current value for K? What will it be if you decrease your debt usage to 20%