Answer: 0.05628 = 5.628%
The minimum yield that Mary could receive is 5.628%
Explanation:
Using the YTM (yield to maturity) formula
YTM = C + (f - p) /n ÷ (f+p) /2
C = coupon rate ; 4% of 1,100(par value) = 4/100 × 1,100 = 44
f = face value ( par value) = 1,100
P = market price = 1021.50
n = number of years = (10 - 5)= 5years : since the bond could be called at the end of 5 years.
YTM = 44 + (1,100 - 1,021.50)/5 ÷ (1,100+1,021.50)/2
YTM = 44 + ( 78.5)/5 ÷ 2121.5/2
YTM = 59.7/1,060.75
YTM = 0.05628
= 5.628% as the minimum yield Mary could receive.