A single gbu57 is 20ish million dollars. To come close to damaging any of these sites you’d expect 5-10 per strike iirc there’s 7 bases with hits so 7x5=35 7x10=70, 35 x20 700 million or 1.4 billion.

From there or depends on what they tossed into the holes after they made them, I’m gonna guess fuel air bombs.