How many liters of new transmission fluid needed for my 2004 645 Ci? on 2004 BMW 645Ci

The repair shop is telling me that the new fluid is $448 and @ $19.95/half liter that equates to approx 11.5 liters of fluid. Is this correct?

Asked by for the 2004 BMW 645Ci
9 to 11.25 liters depending on which transmission is in your car according to my information. That would be for a dry refill.