Please be specific and explain how we got the answer or how we calculated it. Not in excell.

I need to know how did we get PV of $818.34... I need to understand it and write it on paper. Thank you

the bond? BOND RETURNS Last year Janet purchased a $1,000 face value corporate bond with an 8% annual coupon rate and a 15-year maturity. At the time of the purchase, it had an expected yield to maturity of 10.45%. If Janet sold the bond today for $820.17, what rate of return would she have earned for the past year