I was wondering if I could see the work required to solve this problem? I know the answer is 6.95% but I am unsure of how to obtain this. Thank you :)

A 15 year old bond with a 10 percent semi annual coupon has a par value of $1,000. The bond may be called after 10 years at a call price of $1050. The bond

has a nominal yield to call of 6.5 percent. What is the bond's yield to maturity, stated on a nominal, or annual basis?