How to make body template reactive?

[zaaoak]

Im using the template to add a custom column that calculates based on a value from another source, however when that source updates, the the column value doesnt change, what can i do?

    <EasyDataTable
        >
          <template #item-remain="item">
            {{
              computed(() => {
                return (
               Source.total-  item.remaining
                )
              })
            }}</template
          >
        </EasyDataTable>

if the source.total changes, this column value remains the same, how do i make it reactive?
//

[zaaoak]

Ah Nevermind, it turns out that in my computed value i linked an invalid property which is why its not updating