When you're calculating 110w per card, is that with everything else factored in and measuring power consumption at the wall?
110 watts as set as the power limit under Linux using Nvidia-settings, or reported by nvidia-smi in either Linux or Windows (or calculated from the %TDP setting in something like Afterburner).
At the wall will vary more due to power supply efficiency curves.
Oh well in that case, I guess I'm way lower than I think.