Most costing goes wrong in the same place: the price on the invoice is for a 5kg bag and the recipe uses 180g. Cost Builder does that arithmetic every time, so the margin you are looking at is the real one.
Free on every plan, including the free account. Prices in AUD.
Each ingredient or part, with what the pack costs and how much is in the pack.
The per-unit cost is worked out from the pack price, so 180g of a 5kg bag is 180g of a 5kg bag.
The margin appears next to it, in money and as a percentage. No hunting for it.
A clean PDF you can hand to a partner, a bookkeeper or an accountant — or keep for the next time prices move.