Hi Brian.
When you say you want your calculations to happen "automatically", do you mean you'd like them to happen whenever the parameter(s) into which the user is typing the data changes?
If so, you can attach a to the tag where the parameter is displayed on screen or, if the parameter is never shown in the UI, you can use to attach a change handler to the param.
If you meant something different, just let us know and we'll try to point you in the right direction.
Cheers.
James
#DashBoard