zarada

1. earnings; wages; pay
   Prosečna zarada u Srbiji je porasla. — The average wage in Serbia has gone up.
   Od te zarade ne može da plati stan. — He can't pay rent on those earnings.
2. profit
   Prodao je auto i imao lepu zaradu. — He sold the car and made a nice profit.

In official and legal texts zarada is the standard term for wages; in everyday speech plata is more usual.