where did you get that numbers from? the page says $60m for ~4.85t to GTO for F9 and $90m for 6.4t to GTO for FH. price for maximum performance isn't quoted; i believe without reusability it'll be about 3x F9 (there's three F9's in the FH, after all).
The pricing subtext for the FH says 6.4mT to GTO, but lower on the page the FH specs say 21,200kg to GTO.
For the F9, it's clear that 4.85mT to GTO is the same as listed below. So I'm assuming the 21,200kg to GTO for the FH is incorrect. Or there is something I'm missing? (additional weight required for GTO and which subtracts from the 21,200kg?)
I.e. 21 tons is the max payload, and the guide price they're giving is just for 6.5 tons.
Still interesting that they advertise the re-use price, while not having successfully landed a single core yet (admittedly, they came really close to a successful landing a couple of times).
1. 12 million per tonne to GTO on Falcon 9 with a maximum load of 4.85 tonnes
2. 14 million per tonne to GTO on Falcon Heavy with a maximum load of 21.2 tonnes
If you buy the 6.4 tonnes to GTO on Falcon Heavy package, Space X will sell the additional space to another two customers on same launch.