The Transmutation node in the Alchemy spec tree has a few issues:

• Despite Blizzards tooltip stating it gives +1% resourcefulness it actually gives +1 resourcefulness, easily fixed this locally in spec data
• If you already have points in this node simulation mode will not include percentage bonuses you already have unlocked, but if you remove points from the node in simulation mode it will subtract them, possibly leading to negative values, not quite sure how to fix this

Upload images to github fails for some reason so I made an imgur album with some screenshots, note the descriptions below the images https://imgur.com/a/bdeccQ4

The % Resourcefulness Nodes still aren't added correctly in simulation mode.
This is just opening simulation mode + the knowledge simulation with no manual changes to knowledge, the actual value is 45.6% but simulation mode shows only 20.5% - basically missing the 25% from the three percentage bonuses in Transmutation:

If I now remove 10 points from the transmutation node I lose 10 resourcefulness from the points themselves and then another 135 from the 15% node at 15/20 points which is correct, but these 135 points weren't added in the first place so the resourcefulness value goes way down. Same for the other two nodes that grant +x% resourcefulness.

Removing all points from the Transmutation node and unlearning it ends up displaying negative resourcefulness in simulation mode but it does not remove the 5%/45 resourcefulness from 0/20 Transmutation, maybe the last part is somehow related to #99

Fixed with 8.4.1

interesting... always thought its wierd that there is exactly one node that gives % ^^ will fix in next release!

Yeah, I was a bit confused at first too, but the other bug is probably the bigger issue because I think that it also affects the average profit calculation since entering simulation mode where it shows the wrong resourcefulness value does not change my average profit, correct me if I'm wrong