I have this formula:

`round((100 * (((toNumber(prop("Rendered"))) + (toNumber(prop("Approved")))) + (toNumber(prop("Ordered"))))) / 3) / 100`

Rendered, Approved, and Ordered are checkbox columns and as I check them off this formula shows a progress bar.

I want to add two more checkmark columns "Delivered" & "Installed" and replace 3 with 5 but every time I try to add them the formula does not work and I think it's because of the brackets. I'm confused about which brackets or parentheses belong to what.