Startup Idea: Craft Show Inventory and Cost Tracking Software

Startup idea to develop a software for small artists, specifically jewelry vendors at craft shows, that tracks their supplies, their corresponding costs, and connects to inventory. This will assist them in pricing their products precisely based on material costs.

I sell jewelry at craft shows. I would love software that tracked my supplies and their cost. Then when fighting out my pricing I could select the materials used to come up with a cost to make to base price on. This could then connect to inventory for my supplies and product.

I haven't searched before because it seems too specific to small artists.