The Roblox proposal on Area51 has a component commitment score of 42% (though an overall commit score of only 5%, owing to having only 5 committed followers who have scored more than 200 on SE sites other than Area51). Click on the "more info" at the bottom of the blue panel in the top-right corner to see the commitment component scores.
The calculation of the component commitment score is apparently:
SUM(Reputation >= 200 ? 0.233 * ln(Reputation-101) - 0.75 : 0) + 1.5
How can those 5 users have amassed enough commitment points to bring the Roblox component commitment score to 42%?