YTM vs. YTC

It is now January 1, 2020 and you are considering the purchase of an outstanding bond that was issued on January 1, 2017. It has a 7.25% annual coupon and had a 20-year original maturity. (It matures on December 31, 2036.) There is 5 years of call protection (until December 31, 2021), after which time it can be called at 107.5 - that is, at 107.5% of par, or $1,075. Interest rates have declined since it was issued, and it is now selling at 113.1% of par, or $1,131.00.

1. What is the yield to maturity (YTM)?

2. What is the yield to call (YTC)?