THIS QUESTION IS BASED ON QUESTION $22$A FR

You are talking to your wealth manager and he tells you the history of a bond that he purchased for you $10$ years ago that was a $20$ year semi annual $8\%$ coupon bond that had a $12\%$ YTM at that time. You want to have some input into the transaction that is in your account. You think that figuring out the holding period return will give you a good sense of whether you should hold or sell this bond. You know the HPR of selling it right now but you want to compare this HPR with the HPR in $5$ year because you and your wealth manager think that the YTM will be $13\%.$

What is the holding period return of this bond if you sold it $5$ years from now? Please enter your answer as a percentage and NOT a decimal.