Both this and steveo's formula yields the same result.

I my case the blm is always low yet my wide band always shows a near prefect afr. I just get bothered when I watch the live data and see...

Thanks for resetting my head from over thinking back to simple math mode !

What would the correct process be to deduce or increase a cell value (or multiple cells at the same time)
example; in a VE table say I want to reduce a value by a set percentage, say 5% across a...