I suspect that's just an initial breakdown. They're estimating 4.2 to 8.4 million a day out of the 42 million they normally make, but that's just on the revenue side.
Equipment, man hours, botched projects, and lawsuits are going to push that number waaay higher, and even then I feel like it's got to be pretty low given the vast amount of money that passes through every day. On a 15% hold 42 million would work out to 280 billion of flow through the slots max (and obviously that's estimating high and assuming all revenue is from slots).
So 8 million a day is $53 billion in coin in that's not occurring? Maybe that's correct.
Doing quick napkin math so pardon any errors.