How to setup different "Grade Rates" for each location

Summary:

We have a requirement where we need to setup different grade rates for each location.

We have about 1000+ locations in the system

Please let us know how this can be accomplished in Oracle

Content (please ensure you mask any confidential information):

Here is the sample worksheet

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

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