Four and one-half years ago Gavin purchased a $25,000 bond in a new Province of Ontario issue

Question:

Four and one-half years ago Gavin purchased a $25,000 bond in a new Province of Ontario issue with a 20-year and a 6.1% coupon. If the prevailing market rate is now 7.1% compounded semiannually:
a. What would be the proceeds from the sale of Gavin’s bond?
b. What would be the capital gain or loss(expressed as a percentage of the original investment)?
Maturity
Maturity is the date on which the life of a transaction or financial instrument ends, after which it must either be renewed, or it will cease to exist. The term is commonly used for deposits, foreign exchange spot, and forward transactions, interest...