I'm working on an expense claim form and am using field rules show certain sections that are applicable.

i.e.

The issue is that if an employee goes back into the "Build your form" tab and changes their response, the amount entered into the hidden field is still used in the calculation:

I have the field rule set up so that the field data will be ignored when the field/section/page is hidden:

Is there a way to fix this? I am using the formulas in the layout so that the answers show properly once the form is submitted (I've had issues with JavaScript calculations not showing up, plus it's easier to manage the calculations without a coding background).