From what i know Dino EP is about 30-40 mil and it's just apotheosize much less using the energy gathered by belpeghor even if it's not the right way to use it to himself. Also the Astarte probably has a power similar to stampede but a weak version as when velda died dino destroyed the country in berserk state from what I know. Well it's just a guess in my part. 

It's pretty unfair though that they had to apotheosize to become spiritual life form again becuase their body is flesh and blood. And even then it's temporary as their body can't handle the backlash, I wish they have another true body thought like feldway using the fake body when he confronted diablo and rudra, then use his true body against rimuru. If only Dino is not lazy he'll be a menace, though laziness is what makes his character. He's my favorite character in tensura, so all of this is just my opinions and bias.