IMHO, it's high time to stop paying lawyers, accountants, notary publics (in Germany) and similar professions in percentages. There is no way a bunch of lawyers deserves that kind of payout.
Set maximum billable rate at minimum wage. That seems only fair solution. It is enough for many workers, should be enough for anyone.
How much she got is the same number, whether you measure it in dollars, euros, or pounds: 0.00