Round up numbers in summary or number widget in dashboard

Hello,
I would like to be able to round up only the total or summary of a column without loosing the fidelity of the numbers in the items. EG: if I have a column that looks like:
14
27
89
1998
2
2.04
1
Right now I can see a summary that looks like:
2133.04
I want to be able to sum it up like:
roundup(column,-2)
to just see the hundreds, or
2200.000
I would ideally love for this to be done for the whole board, but given that it can’t I would be ok with it being able to be done for the groups and then be able to add them up in a numbers widget.
I would also be ok with this functionality being added to the numbers widget itself, maybe as part of the ability to do math with it between columns, which I know is another existing ticket.

Thank you for your help, and I am just putting this idea out, I understand that it might be lower priority.