Please show all calculations and formulas.If using Excel, please show data, formulas, etc.

Practice example 7:

The Outlet has an unlevered cost of capital of 14.2 percent, a tax rate of 35 percent, and expected earnings before interest and taxes of $23,400. The company has $23,000 in bonds outstanding that have a coupon rate of 7 percent. The bonds are selling at par. What is the cost of equity?