I'm using zoho creator to make a simple interface for me to manage a client database and the services I provide.

I have two forms:

      

      Student form  - has a numeric field where I record the number of minutes that student is allotted to receive per month.

      Note form - has a numeric field where I can specify the number of minutes the student received for that particular session.  

I want to be able to compare the two numbers and look at the result to see if the student is over or under the number of minutes alloted for a given month.  

I'm trying to work around my lack of programming knowledge by creating other forms with lookups and formulas, but  not getting a result.  

I'm guessing this is some kind of workflow function?  or something else?

I've combed through the vault here and finding other questions similar to mine but maybe a bit more complex and not really understanding the solutions. 

I appreciate the help!