You bought one of Great White Shark Repellent Co.’s 7.4 percent coupon bonds one year ago for $1,041. These bonds make annual payments and mature 20 years from now. Suppose you decide to sell your bonds today, when the required return on the bonds is 6 percent.
If the inflation rate was 4 percent over the past year, what was your total real return on investment?
Bond Price = FV / (1 + i)^n + Pmt x (1 - 1 / (1 + i)^n) / i
Bond Price = 1000 / (1 + 6%)^20 + 1000 x 7.4% x (1 - 1 / (1 + 6%)^20) / 6% = 1,160.58
Return = (1160.58-1041)/1041 = 11.487% = i
Real Rate = (i - g)/(1 + g) = (11.487%-4%)/(1+4%) = 7.199%