I charge £400 for a half-day event (typically 10-1, or 1-4).
I charge £700 for a full-day event (typically 10-4).
Fees are for both online and f2f events (if f2f, travel and accommodation will be charged, if needed).
My fees for this are variable, depending on your needs. As a 'rule of thumb', I typically charge the equivalent of my individual coaching rate (£100 per hour), but this can be negotiated depending on your particular needs.