Complicated IF and Text to Number formula

Hey Pam,

Hope you are doing well.  I'm going to give this a crack.

It would help if you set up 'variables' and then added them together later.  It helps with reading and debugging.

Variables are formatted as:
var {type} Name=evaluation;

I also like to start with the most simple and build the complexity.
We need to find the "Due Date" even though that keeps moving and we only worry about the # of days that it gets pushed.

Field [Days Remaining] formula:
""""""
var number RunTime=ToNumber([Run Time]);
var number NoteOneToResubTwo=ToDays([Resubmittal #2]-[Notification #1]);
var number NoteTwoToResubThree=If([Relates]=true, ToDays([Resubmittal #3]-[Notification #2]), null);

var date DueDate=
[Start Date]+Days($RunTime)+Days($NoteOneToResubTwo)+Days($NoteTwoToResubThree);

ToDays($DueDate-Today())

""""""

Field [Expiration Date] formula: coming soon
Field [Notification 1 Forecast] formula: coming soon