A field may be the result of a formula that includes the contents of other fields and values.
To be a calculated field, tagged it on their options within settings.
To define a formula, go to Modify settings contained within that field.
Any field in a record can be defined as a value to be part of a formula. Edit this field and press the button targed shaped and name it.
In the numeric fields, mathematical operations are performed. In the text fields or similar linkages are made.
In the Menu, there are a button called Values that allows you to see the defined values.