I’m using XWiki 10.7 and the Calc Macro 1.1 and experience problems when using the macro with two columns of integer values:
|1|0
|2|0
|{{calc formula="$a"/}}|{{calc formula="$a"/}}
|{{calc formula="$b"/}}|{{calc formula="$b"/}}results in
| 1 | 0 |
| 2 | 0 |
| 10.00 | 10.00 |
| 20.00 | 20.00 |