7AT flush price ?

SupraKirk

I know there are other threads on this but I didn’t see any regarding the price. I’m at 63k miles currently. I know some people go without changing the fluid until much later. Normally I would too but I’ve been having some harder downshifts and sometimes seems to hang in a gear too long. I know the 60k service suggests doing the transmission flush so I called my local dealer and they said it would be $800 to do it. That seems absolutely insane. I’ve seen several people say it cost anywhere from $180-250. I didn’t really want to go to another shop for them to do it since the car has to be cold. I just don’t know any local shops to trust with it. Is there a service receipt anyone has from another dealer I can show them to compare?