Answer: 0.74%
Step-by-step explanation:
Change in price of a fixed-income asset is inversely related to a change in it's interest rates.
The price change is therefore formulated by;
Δ Price of Asset = -Δ * Δy
Δ = 4 years / ( 1 + i)
= 4 / ( 1 + 8.1%)
= 3.7
A basis points refers to 0.01%. So 20 basis points 0.2%.
Δ Price of Asset = -3.7 * -0.2%
= 0.0074
= 0.74%
Price of Asset increases by 0.75%