which fluid to use when changing my transmission fluid, and how much will I need

Its a 2000 Kia Sportage, Automatic, 4-cyl and do I need a filter?

yes,you need a filter kit.fluid type is Dexron 111,but look on tranny dip stick to verify,should say on it,also owners manual.

Thank you for the answer, I just wanted to know to make sure the right one is used. I try to learn as much about my car as possible. I hate to say this be being a woman, there are some people and places that will take advantage of our lack of information and it ins up costing us more. There is a lot I do know and have done for repairs and fluid changes in my vehicles, but my Kia is new for me and I have a lot to learn about it still. Again Thanks.

I have checked around and to lowest cost is about $200.00. to $275.00. does that sound right to you?