PC on max 15^50 shadow bow

ok, i have a rather nice shadow bow but i dont have a clue of how much it's worth...

the stats are:

Max. dmg.
Req 13
15%^50%
zealous
Max fortitude

well i would appriciate it if u guys helped me

b-u-m-p

bumper de bump

10k. Maybe 15 as it has the perfect fortitude.

Check this thread first in future. Save you some time.