Answer:
Decrease in price of the bond by 16.01%
Explanation:
Find the price of the bond with the two different YTMs and compare the two prices;
a.) at 7% YTM and semi-annual coupons
N = 12*2 = 24
I/Y = 7%/2 = 3.5%
FV = 1,000 (use 1000 as FV if not given)
PMT = (4%/2)*1000 = 20
PV = $759.12
b.) at 7% YTM and semi-annual coupons
N = 24
I/Y = (7%+2%)/2 = 4.5%
FV = 1,000 (use 1000 as FV if not given)
PMT = (4%/2)*1000 = 20
PV = $637.61
Percentage change in price = [($637.61 - $759.12)/$759.12] *100
Percentage change in price = -16.01%
There is a decrease in price of the bond by 16.01%