Count cells not equal to many things
Generic formula
=COUNTA(range)-SUMPRODUCT(COUNTIF(range,things))
To count cells not equal to many things (i.e. not equal to x, y, z, etc.), you can use a formula based on COUNTIF, SUMPRODUCT, and COUNTA.
In the example shown, the formula in H5 is:
=COUNTA(B4:C9)-SUMPRODUCT(COUNTIF(B4:C9,things))
Context
Normally, if you have just a couple things you don't want to count, you can COUNTIFS like this:
=COUNTIFS(range,"<>apple",range,"<>orange")
But this doesn't scale very well if you have a list of many things, because you'll have to add an additional range/criteria pair to for each thing you don't want to count. It would be a lot easier to build a list and pass in a reference to this list as part of the criteria. That's exactly what the formula on this page does.
How this formula works
This formula uses the named range "things" (E5:E7) to hold values we don't want to count.
We start by counting all values in the range being counted with COUNTA:
=COUNTA(B4:C9)
Next, we generate a count of all things we don't want to count with COUNTIF like this:
COUNTIF(B4:C9,things)
Because the named range "things" contains multiple values, COUNTIF will return multiple results. In the example, we get back an array of values like this:
{1;2;2}
and we use SUMPRODUCT to sum all items in the array, which returns 5. This number is then subtracted from the original total to yield the final result.
Using SUMPRODUCT instead of SUM avoids the need to use array formula syntax.
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