Hi
I’m trying to upload the next update to Apple today, in which you’ll be able to specify a “Cost per weight” metric in a “Blend Log” report, and view that line item information, as well as graph it in the line charts. See attached screenshot. (Whether its kg or lb is determined by your “Weight” setting in Preferences.)
In the mean time, if you pre-blend, you could glean the overall cost per roast information in a “Roast Log” report, choosing “Cost” and “Weight” metrics. That would show the cost of the blends at the weight of your batch size.
If you post blend, though, you could create a dummy roast, and choose the blend, and enter a 1 kg weight. Then, in the roast console, tap the “Green Components” button - the hollow bean icon. Just make sure to set the roasted weight BACK TO ZERO before deleting the roast, so that your inventory remains in sync.
Either way, it will be easier soon.
Hope this helps..
Danny