$3.$ One year ago, XYZ Co$.$ issued $6-$year bonds at par. The bonds have a coupon rate of $5\mathrm{.}41$ percent, paid semiannually, and a face value of $$1,000.$ Today, the market yield on these bonds is $3\mathrm{.}36$ percent. What is the percentage change in the bond price over the past year?

$4.$ Suppose ABC Co$.$ issues $$28$ million of $9-$year zero coupon bonds today. If investors require a return of $4\mathrm{.}24$ percent compounded semiannually and all the bonds remain outstanding until they mature, how much $($in $ millions$)$ will ABC have to pay to redeem the bonds.