Net profit (5)
I believe the answer is:
yield
I believe this is a double definition.
'net' is the first definition.
(I know that net is a kind of the yield)
'profit' is the second definition.
(I've seen this before)
(Other definitions for yield that I've seen before include "Relinquish" , "Concede - product" , "Submit; produce" , "Surrender or bear as a crop" , "Investment interest" .)