Hey John - reference the value of the calc field by using its field name like so: ${myCalculatedField} in your formulas. So if you have a field called 'sum' that adds two other fields 'fieldOne' and 'fieldTwo', the calculation column for 'sum' would look like this: .=${fieldOne} + ${fieldTwo}
Then to reference 'sum' somewhere else, you can use the field reference as the default value, like so: ${sum}
Does that help?