At the end of each battle, when you come to the loot gained screen, I think there should be a spot where it shows have much reasouces you profited. For elixir it should be how much you gained minus the cost of your ELIXIR army and spells(, not including clan castle troops.) For gold it should be the amount you gained minus the amount you spent searching for battles. For dark elixir it should be the amount you gained minus the cost of your DARK ELIXIR army(, again, not including clan castle troops.)