Hi quilterj I sell checkbook covers with my miniature fronts for $6.50 but the lady who buys them from me sells them to tourists for $13.
Since yours is mostly fabric with some applique I would sell it for $7 or $8. If you do more pockets I would add another $1.
But this being able to sell it depends on the market in your area or online. What is out there that is similar to what you are making?
You are supposed to add up the cost of your materials and add your time but I think if you price it too high it won't sell. So I tend to ask what I would be willing to pay for it.
I think your checkbook cover is very nice. I used to add a pen holder but I got away from that to save steps.
I hope this helps.