The Superhero Database Classification number, or SHDB Class, is a number that represents the overall 'power' of a character. All traits of a character are used for calculating the Classification.
What it DOESN'T mean
This doesn't mean that a higher class would always beat a lower class character. But the bigger the difference in Class is, the more obvious it is who'll win in a fight.
How is this calculated
( INT^1.3 + (STR*0.5 )^2 + (SPE*0.5)^2 + DUR^1.6 + (POW + (SPS*SPL))^2 + COM^1.8 ) ^ TIER
Super Power Score and Level
Every Super Power has a score (SPS) that is used to calculate the Class. Each Super Power also has 3 levels (SPL). The level is set when connecting that Super Power to a character. The level determines the final score, of the Super Power, being used in the calculation.
https://pastebin.com/gZGknc7g
Percy was also able to use Akhyls attack against her and torture her with it.
Akhyls Is a primordial being https://riordan.fandom.com/wiki/Protogenos
“Minor goddess? I was old before the Titans were born, you ignorant girl. I was old when Gaea first woke. Misery is eternal. Existence is misery. I was born of the eldest ones - of Chaos and Nyx.”
Percy was also sort of weakened as he was in a semi non corporal form and didn’t really know how to use his powers while in that state.
Also Demi gods being able to beat or either contend with gods and stuff is not inconsistent or anything.
Even weaker demigods can beat Minor gods.
Stronger demi gods like Jason can kill Krios in a fight.
I’ve sent the quote a million times already.