I'm afraid you'll have to do some math. I would break down one block into its components. How many background pieces and what are their sizes, the same for each of the other elements. Once you know how many pieces you need of each fabric and size, you need to multiply by the number of blocks. Then you need to figure out how many pieces you can get from a width of fabric. There are sites that can help you with the last part. This site is pretty good.
https://www.quiltersparadiseesc.com/...Calculator.php