Need help doing these in excel with formulas please

AAA Corp. is comparing two different capital structures. Plan I would result in 12,700 shares of stock and $100,050 in debt. Plan II would result in 9800 shares of stock and $226,200 in debt. The interest on the debt is 10 percent. 1. Ignoring taxes, compare both of these plans to an all-equity plan assuming that EBIT will be $70,000. The all-equity plan would result in 15,000 shares of stock outstanding. Which of the three plans has the highest EPS? The lowest? 2. In part (a), what are the break-even levels of EBIT for each plan as compared to that for an allequity plan? Is one higher than the other? Why? 3. Ignoring taxes, when will EPS be identical for Plan I and II? 4. Repeat parts (a) and (b), and (c) assuming that the corporate tax rate is 20%, are the break-even levels of EBIT different from before? Why and why not