32. A 30-year maturity, 8% coupon bond paying coupons semi annually is callable in five years at a call price of $1,100. The bond currently sells at a yield to maturity of 7% (3.5% per half-year).

a. What is the yield to call? b. What is the yield to call if the call price is only $1,050? c. What is the yield to call if the call price is $1,100 but the bond can be called in two years instead of five years?

I saw some stuff and does not show how they got some of the numbers. Can it be answered in Excel showing the formulas? Please do not cut and paste the solution