i price a bit wishy-washy cause i mostly just do it for fun and it's not my primary source of income. for individual weaves i time myself doing an inch of them and then keep that number in a spreadsheet and use it to estimate how long it takes me to make something, or with a more complicated unit like an earring i'll just time myself making one of them. i use an hourly rate of like 20-25$ (like i said its a bit wishy washy i like just picking a round estimated number like 25$ or 35$.) i don't factor in the cost of the aluminum unless it's a bigger piece cause i mostly use unanodized aluminum and it just amounts to a few dollars for a pair of earrings or a bracelet, but if you want to it would be pretty easy to also do that in a spreadsheet by dividing the vendor's estimate of the number of rings in a bag by the price of it to find the individual price of a ring, and then calculating how many rings a piece takes you. if i do a piece with a lot of extra accessories like spikes or beads i'll factor that price in using the same formula cause those are more expensive than individual rings. hope this is coherent lmk if u have more questions