Example Statements for Calculated Project User Defined Fields

We are working with P6 v7.0 Dashboards and desire to leverage Project User Defined Fields.  We are wondering if there is a library of example Statements that could be leveraged from past clients.   We desire to show the following:Tolerances Limit +/- 25% Up to $100K Budget 

Tolerance Limit  +/- $25,000 for $101K to 250,00K Budget.

  

Any insights would be appreciated.