Formulas
Arithmetic
Group → Enable Formula
Parentheses (Nested Groups)
Nested Groups act like mathematical parentheses. In other words, deeper Groups are computed before their parent(s). They have an operator unless they are the first formula item.
Rounding
Presets
Group → Formula Presets
To remove a preset, re-click the active preset button.
Choice Groups
Formulas use the selected Item Value.
Checkboxes
Internally, a Checkbox value is 1 or 0. This example multiplies that value by $5.00 (a "Auxiliary" Item) using a formula. Effectively, this is a no-code conditional form.