A $5-$year $4\%$ A$-$rated corporate bond$$s yield to maturity is $6\%.$ QuotedPrice $=$ #$13$

The bond gets downgraded to BB$-.$ It$$s yield is likely to be #$14$ than $4\%$ and #$15$ than $6\%,$ and the price is likely to be #$16$ than the original Quoted Price