% of true and false excluding blank cells

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Thanks.

Count TRUE:

=COUNTIF(AA3:AA21,1)

Count FALSE:

=COUNTIF(AA3:AA21,0)

Percentage TRUE:

=COUNTIF(AA3:AA21,1)/ROWS(AA3:AA21)

Format as percent.

There are no blank cells.

1s and 0s are easier so i would change the true and false as below

easiest
i3 =IF(AND(B3=C3,C3=D3),1,0) etc and copy down

then you can just average this to get the %
=average(I3:I21)

if you insist on true and false and are concerned about the demoninator countif(true)/(countif(false)+countif(true))


columns y to am could be not required if you change the formulas you have replacing "True" with 1 and "FALSE" with 0, this could even be done with a find and replace on the range I3:W21