Answer: -2.27%
Step-by-step explanation:
Bond prices are inversely related to interest rates so when the interest rises, the price of a bond will fall.
The formula for calculating this fall is;
= - Duration * ( Change in interest rate / (1 + current rate))
= -7 * ( 0.35%/(1 +8%))
= -0.022685
= -2.27%