I have 4 Sapphire 570 Nitro+ 8GB and indicatively I have a hashrate for CryptoNight algorithm of 4900 h/s, consumption of 330w and an energy cost of 0.28$.
How are you getting these high hash rates on Cryptonight ? These almost match the vegas.
Triton uses CN Lite v1, so the OP may be getting those rates.
To the OP, Id go to a pool and use their calculator. That should give you the closest estimate,