Real powerscaling.
The fun thing is that I invented only 1 Data : Arlong = 3 Fishmen
This video:
Someone did the calculus based on the informations we have and they came to the conclusion that to destroy a small planet, 10 K would be enough but to destroy a big planet 10 times the gravity of our Earth, 500 K would be requiered since Frieza did that.
You also need to take into account the fact that the Dragon Ball planet is very small, I wouldn't even be surprised if it is smaller than our own moon. This means that the moon of this planet would be even smaller and easier to destroy. Which checks out.