How 'Financially Independent' Will Harry And Meghan Really Get?

Harry and Meghan, the Duke and Duchess of Sussex, plan to become financially independent from the British royal family. They currently rely on the Sovereign Grant and Prince Charles's income from the Duchy of Cornwall. They intend to stop using the Sovereign Grant except for royal travel but have not mentioned ceasing funds from Prince Charles. Security for the couple in the UK is provided by the Metropolitan Police, funded by the UK Home Office, but it's unclear who will cover security costs in North America. The couple did not consult the Queen before announcing their decision.

What are the two main sources of funding for Harry and Meghan?

How much of their official office expenses is funded by the Sovereign Grant?

What is the role of Prince Charles in funding Harry and Meghan's expenses?

What security arrangements are in place for Harry and Meghan while in the UK?

What did Harry and Meghan announce regarding their financial ties to the royal family?