According to the figures from the Metropolitan Police in this article...
Unite the Kingdom rally
20 arrests from a possible attendance of 60,000 - so 0.03% were wrong'uns
Nakba 78 rally
11 arrests from a possible attendance of 20,000 - so 0.05% were wrong'uns. And "A further seven alleged hate crime offences at the pro-Palestine event remain under investigation."
A breakdown of the arrests is in the article

