Driver Based Budgeting

Summary:

We are looking to move to driver based budgets and would like some examples of "drivers" used.

Content (required):

Examples of the drivers used to improve business - realising there are business-specific ones, but looking for ideas across the board of what people are using.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):