from $20 (two pizzas) for 10000 btc
No no no. Going that much back makes no sense. It was completely unreliable territory price-wise.
Actually, yes, it does (to a degree).
According to the link below:
In July 2010, bitcoin began trading at a value of US$0.0008, climbing to US$0.08 by month’s end.
https://investingnews.com/daily/tech-investing/blockchain-investing/bitcoin-price-history/let's take the later value of $0.08 as the first price.
57823/0.08=727787.5X (appreciation factor)
A simple calculation (y root of x where y=11) shows that this corresponds to 3.4X a year, which is in conventional terms 240%, which is exactly what Saylor mentioned.
On the other hand, 100% a year appreciation (which is 2^11=2048) would result in a starting btc price of $28, which is clearly not valid as a historical argument.
Ergo, it is looking more 200% than 100%.