So, as the creator of the Demencia, I've since realized that the feat we have for her current tiering may not be accurate. Mainly because we don't see what happened while she was breaking out of Area 52 (no memes please), at least not enough to say that what happened was caused by her or that it even yields Small Building results. So I decided to try my hand at calcing something myself.
I just now figured out how to calc some things, so bare with me if my math isn't great since I kinda struggle with it sometimes. Anyway...
So for this calc, we’ll assume Penumbra’s height is around 5’0”, average height for an adult woman. As shown in the pilot, Sunblast can travel at speeds of 240 kilometers per hour, which translates to 66.66667 meters per second. Sunblast is also taller than Penumbra and clearly physically fit, so we’ll assume he’s at least 6’0” and estimate weight around 250 pounds.
Sunblast mass: 113.3981 kilograms
Velocity: 66.66667 meters/second
KE result: 251995.80297735616 joules
The joules translates to 0.0000602 tons of TNT (Wall Level)
Of course Villainous is still a very young series, but if this goes through then this would definitely be a downgrade to Demencia since her best feat currently is scaling to Sunblast. So... rip.