Moddel:0

Inserts a visibility:hidden and color:transparent (i.e. invisible) zero character (or something else) in strikethrough font.

Demo:

{|class="wikitable sortable" border="1" style="text-align:center" 
|-
!
! Spaces       !! None        !! Comma        !! Period
|-
!1
| {{0|}}46 934 || {{0|}}46934 || {{0|}}46,934 || {{0|}}46.934{{0|}}%
|-
!2
| {{0|0}}3 013 || {{0|0}}3013 || {{0|0}}3,013 || {{0|0}}3.013{{0|}}%
|-
!3
| {{0|}}35 613 || {{0|}}35613 || {{0|}}35,613 || {{0|}}35.613{{0|}}%
|-
!4
| {{0|00 0}}13 || {{0|000}}13 || {{0|00,0}}13 || {{0|00}}.013{{0|}}%
|-
!5
| {{0|}}11 000 || {{0|}}11000 || {{0|}}11,000 || {{0|}}11{{0|.000}}%
|-
!6
| {{0|00 }}710 || {{0|00}}710 || {{0|00,}}710 || {{0|00}}.71{{0|0}}%
|}

renders as:

	Spaces	None	Comma	Period
1	46 934	46934	46,934	46.934%
2	03 013	03013	03,013	03.013%
3	35 613	35613	35,613	35.613%
4	00 013	00013	00,013	00.013%
5	11 000	11000	11,000	11.000%
6	00 710	00710	00,710	00.710%