Are you asking to count how many >0 an a row per row basis for the 12 columns?

Like: =COUNTIF(A1:L1,">0")

or in all 12 columns how many have numbers greater than 0?

Like: =SUMPRODUCT(--(MMULT(--TRANSPOSE((A1:L25)>0),ROW(A1:L25)^0)>0)) confirmed with CTRL+SHIFT+ENTER not just ENTER, where A1:L25 is the whole range of 12 columns. This counts number of columns containing at least 1 non-zero value.