Has Elon Musk really brought down launch costs by 95%?

No.13096717 ViewReplyOriginalReport
The rule of thumb for launch costs for several decades was $10k/lb, but supposedly Musk has brought down the cost to $500/lb. This sounds awfully fishy, but I can't find any independent investigations or other such sources to prove it one way or the other. Does anybody have any info here?