Except it says "whichever" is higher, so if they decided to fine you 10 million or 2% of revenue, and your 2% is much lower than 10 million, guess which one you're paying...
> Up to €10 million, or 2% of the worldwide annual revenue of the prior financial year, whichever is higher
> Up to €10 million, or 2% of the worldwide annual revenue of the prior financial year, whichever is higher
See: https://www.gdpreu.org/compliance/fines-and-penalties/