EXCEL: Count Range; but Exclude blanks AND a specific string - excel

Question

Excel Version: Microsoft 365 bundle (V 2106 Build: 14131.20278)
I'm trying to create an Excel formula that outputs a number onto a single cell (B11); the formula must:
Count the number of cells that HAVE DATA on a given range [B2:B8];
Therefore, IT must NOT count non-blank cells; but must also NOT INCLUDE cells with a specific string (in this case the string would be "N/A") ;
The formula must also count the number of line breaks [so Char(10)] present on that given range.
I understand that it's not conventional to count inputted line breaks for a range; but that's what I need.
See the attached image:
RANGE = In this example, the range of (non-blank AND non-"N/A") cells I want to count go from B2 to B8.
Cell w/ Formula: B11
As of now, I only have the following formula done.
=SUM(LEN(B2:B8)-LEN(B2:B8;CHAR(10);""))+(LEN(B2:B8)>0))
This formula outputs == "9" (i.e., 9 line breaks: ignores blanks, but includes the string "N/A")
This formula allows me to count all line breaks present on that given range (so, it doesn't count blank/empty cells), but it obviously doesn't exclude the specific string "N/A".
Expected output == "8" (i.e., 8 line breaks: ignoring blank cells AND cells with the string "N/A")
I suppose this could be accomplished with an "IF", but I haven't figured it out yet.
Thank you for your time!
PS: I tried to make a table in here, but I was not able to add line breaks inside a single cell; so, I ended up resorting to an image to explain my point, sorry about the inconvenience!)

Answer 1

Right, since you have got access to Microsoft 365, try the following:
=SUM(FILTER(1+(LEN(B2:B8)-LEN(SUBSTITUTE(B2:B8,CHAR(10),""))),LEN(B2:B8)*(B2:B8<>"N/A"),0))
Nicely layed out question btw, and a fun little issue to work on. Hopefully the above helped you out.

Answer 2

Just for a different approach:(edited after #ScottCraner pointed out it didn't account for N/A)
=LET(x,FILTER($B$2:$B$8,B2:B8<>"N/A"),
y,TEXTJOIN(CHAR(10),TRUE,x),
z,SUBSTITUTE(y,CHAR(10),""),
LEN(y)-LEN(z)+1)
Of course, if you have a lot of data, TEXTJOIN will fail if the resultant string is > 32,767 characters

Answer 3

Should be able to do this with a simple COUNTIF (or COUNTIFS if you want to add more criteria to count against).
Try =COUNTIF($B$2:$B$8, "<>N/A")
EDIT1: As pointed out by cybernetic.nomad, a better approach to dealing with non-numeric data will be COUNTA. Another solution might be to just filter the whole data with something like:
=COUNTA(FILTER($B$2:$B$8, $B$2:$B$8<>"N/A"))
EDIT2: As pointed out by Scott Craner, this solution does not account for line breaks. You can add those in by using:
=COUNTA(FILTER($B$2:$B$8, $B$2:$B$8<>"N/A"))+
SUM(LEN($B$2:$B$8)-LEN(SUBSTITUTE($B$2:$B$8,CHAR(10),"")))