How much should I expect to change differential oil and transmission fluid in my FORD EXPEDITION? ESTIMATE!?

I really don't have the time or space to do it myself right now and have never done it before so I'm just trying to figure out how much it'll costHow much should I expect to change differential oil and transmission fluid in my FORD EXPEDITION? ESTIMATE!?
Rough figures; Trans $80-100. Rear could be the same or less.

ittwit

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