Form Fields as Arithmetic Expression

You can include the Arithmetic Expression setting for a form field so that the data in that field is the result of calculations using values from other form fields.

The expression can use any arithmetic operations (+ - * / %), arithmetic functions, or aggregation functions. The arithmetic functions include all those supported by the JavaScript Math class.

As an example, say you want to calculate the volume on a form that includes the Height, Width, and Length fields. You could perform this calculation using this expression:

"Height * Width * Length"

Since this expression is defined as a setting on the Volume field, the result displays as the value for that field.