Not a lot of changes this Age, so I had some time to make some adjustments to some of the workings... I believe I have documented everything in the italicized notes within these images, but if you have questions please feel free to ask! Sorry, Chris121, but for now I will omit the +Spells version. It is the weekend, though, so maybe it will magically appear.
NW+MP
https://image.ibb.co/jepguG/NWMP.png
Gains/Losses
https://image.ibb.co/cXJwTb/GL.png
Sustainability
https://image.ibb.co/bEbi8b/Sustain.png
Economy
https://image.ibb.co/iT0X1w/Econ.png
Totals
https://image.ibb.co/nwQAob/Totals.png
... And since the Turtle Power is new, here is a Total with 0 value on the Turtle column.
https://image.ibb.co/hBCjEG/Totals_sans_Turtle.pngy