it depends on your location= the experience of the long-arm quilter, the pattern chosen ---there are lots of (variables) best way to find out is to find a quilter, call & ask- the prices vary across the country- and by many different (conditions)
there is a list of quilters here on the board (check the classifieds section) you could see if there is one listed in your area then send her a private message.
for a (range)===somewhere between $40 & $200.