Ultimately resulting from net value (8)
I believe the answer is:
eventual
'ultimately resulting' is the definition.
(I've seen this before)
'from net value' is the wordplay.
'from' indicates anagramming the letters (the anagram comes from the same letters).
'net'+'value'='netvalue'
'netvalue' anagrammed gives 'EVENTUAL'.
(Other definitions for eventual that I've seen before include "Happening at the end of a period of time" , "Ensuing" , "Final - happening as a consequence" , "coming after some time" , "Coming at last, ultimate" .)