In my area, to finish the binding, sewing it on the quilt and hand finishing, the usual price is by the liner inch. Here they charge from 10-25 per liner inch. I have done one binding for a quilter and it was scallop. I cut a bias and pressed her binding and it came to almost $50. She was so happy for the work she paid the price. Whoever had done her quilting did not do bindings.