Instead of having to use wikis and other third party tools this information should be available inside the game, in two forms:
- Generic formula
- Formula with your data filled in
Example using the stun calculation (but should be applicable for all types of formulas):
With character data:
For more complex formulas where the data is based on another formula you should be able to follow to that formula by clicking on the data (essentially an URL to the other formula page).