Hi Vlado,
Let's say that you currently have your values in Column A.
Set up your sheet like this to obtain the results as below ...
Column A: Original Values (No Formatting)
Column B: Original Values Formatted As: #,##0,
Column C: Formula: =ROUNDUP($A,-3), Format: #,##0
Column D: Formula: =ROUNDUP($A,-3), Format: #,##0,
A B C D
5224 5 6,000 6
49 0 1,000 1
765 1 1,000 1
12864 13 13,000 13
53587 54 54,000 54
Given that you're only after something for display purposes, does one of
those give you what you want? (Simply hide Column A original values if you
want to retain them, but not show them to users).
HTH, Sean.