I generally try to stay with $1/1k stitches. If you don’t know embroidery, then you might not know that 1k (1000) stitches can show up as a lot of space covered lightly or a very small amount of space opaque. With my standard patches, I keep it at a standard of $8/3″ patch. But there can be reasons I charge more.
Leather, Velvet, or other premium fabric
High stitch Count.