Without considering the convexity effect, what is the approximate percentage portfolio's value change if the portfolio's yield decreases by 50 basis points? Use the formula that relies on modified duration. Round your answer to the decimal places and express your answer in percentage terms te 3.500% not 0.035) 4.51 0 0.05 06.76 50 An investment fund owns the following portfolio of 3 different types of bonds: Amount Invested Bond Bond Type Par value of Coupon each bond Rate Time-to- Yield-to- Maturity Maturity Annual $2 million A $100 8% Exactly 3 years coupon bond 7% $3 million B Zero-coupon $100 bond none Exactly 5 years 10% $5 million Perpetuity $100 4% Infinite 7%