Using the price change on purchased items in your invoices, Piecemeal allows you to know precisely when and by how much the cost of your inventory items has increased or decreased.
The chart guides your attention to the inventory items that need to be on your radar. On the top right you will find inventory items that you have purchased the most and that have seen a considerable variance in price. At the bottom left you will find inventory items that you have purchased the least and that have not seen any variance.

