Depends on the type of wax you use. If you use premium high end wax, you will pay more but you get more and don’t have to wax as often. If you are doing it yourself at home it might be about $100 and a few hours of your time. If you are having it professionally done, then for example a two door vehicle might be around $700 and then $900 for intermediate and $1200 for a larger SUV. That is with the paint in pristine condition, if the paint has issues or oxidation then it might be more; it depends on the condition of your paint.