Bond portfolios. Exactly three years ago, you started a portfolio. The portfolio was made up of 12 coupon bonds and 14 zero-coupon bonds:

55 The coupon bonds have a coupon rate of 6.69%, paid semiannually.

When you bought them, they had 15 years left until maturity and sold at YTM of 7.11%. The coupon bonds have a face value of $1,000.

55 The zero-coupon bonds also have a face value of $1,000 and were issued originally as 30-year bonds 13 years ago (from today, so ten years before you bought them). When you bought them, they had YTM of 4.32%.

Today:

55 The YTM on the coupon bonds is 6.32%.

55 The YTM on the zero-coupon bonds is 4.21%.

How much money did you make (or lose) on your portfolio? In other words, how much higher (or lower) is your portfolio value today than three years ago when you bought them?