Wojtek purchased a $10,000 face value strip bond on a date when it had 14 years left

Question:

Wojtek purchased a $10,000 strip bond on a date when it had 14 years left until maturity. The purchase price was based on a market yield of 6.2% compounded semiannually. He sold the bond 4 1/2 years later when the market yield was 5.2% 2 compounded semiannually. What was Wojtek’s total gain on the investment? (Taken from CIFP course materials.)
Face Value
Face value is a financial term used to describe the nominal or dollar value of a security, as stated by its issuer. For stocks, the face value is the original cost of the stock, as listed on the certificate. For bonds, it is the amount paid to the...