Let's start with a simple example. A spreadsheet with your name and your vote. You can be sure that your vote is taken into account by the SUM function.
If this is an area of interest to you, I encourage you to take the time to review the work that's already been done in this area. The example you provide doesn't even address the concerns in your parent, much less others that have been identified by those working in the domain.
As a starting point, you can review Rivest's slides for an overview.
As a starting point, you can review Rivest's slides for an overview.
Ron Rivest, "Auditability and Verifiability of Elections", March 2016. https://people.csail.mit.edu/rivest/pubs/Riv16x.pdf
Edit to add: I see I've already suggested this to you earlier today.