There are many options, the correct one would depend, on some other criteria, Note the variations in the results below when some 0 values have been thrown in.
In each row below, my original formula in green, VaraK's in red, along with a couple of alternatives that all produce different results, some obviously wrong.
Sheet1
<TABLE style="BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 2pt; PADDING-RIGHT: 2pt; FONT-FAMILY: Calibri,Arial; FONT-SIZE: 11pt" border=1 cellSpacing=0 cellPadding=0><COLGROUP><COL style="WIDTH: 30px; FONT-WEIGHT: bold"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"></COLGROUP><TBODY><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt; FONT-WEIGHT: bold"><TD> </TD><TD>B</TD><TD>C</TD><TD>D</TD><TD>E</TD><TD>F</TD><TD>G</TD><TD>H</TD><TD>I</TD><TD>J</TD><TD>K</TD><TD>L</TD><TD>M</TD><TD>N</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">1</TD><TD style="TEXT-ALIGN: right; FONT-FAMILY: Verdana; FONT-SIZE: 10pt">-5</TD><TD style="TEXT-ALIGN: right">-8</TD><TD style="TEXT-ALIGN: right">0</TD><TD style="TEXT-ALIGN: right">-2</TD><TD style="TEXT-ALIGN: right">-2</TD><TD style="TEXT-ALIGN: right">6</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">-2</TD><TD style="TEXT-ALIGN: right">-4</TD><TD style="TEXT-ALIGN: right">-8</TD><TD style="TEXT-ALIGN: right">-9</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">2</TD><TD style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt"> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">3</TD><TD style="TEXT-ALIGN: right; BACKGROUND-COLOR: #008080">2</TD><TD style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ff0000">3</TD><TD style="TEXT-ALIGN: right">5</TD><TD style="TEXT-ALIGN: right">5</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">4</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">5</TD><TD style="TEXT-ALIGN: right; FONT-FAMILY: Verdana; FONT-SIZE: 10pt">-5</TD><TD style="TEXT-ALIGN: right">-8</TD><TD style="TEXT-ALIGN: right">0</TD><TD style="TEXT-ALIGN: right">2</TD><TD style="TEXT-ALIGN: right">-2</TD><TD style="TEXT-ALIGN: right">6</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">-2</TD><TD style="TEXT-ALIGN: right">-4</TD><TD style="TEXT-ALIGN: right">-8</TD><TD style="TEXT-ALIGN: right">-9</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">6</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">7</TD><TD style="TEXT-ALIGN: right; BACKGROUND-COLOR: #008080">2</TD><TD style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ff0000">3</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">5</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">8</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">9</TD><TD style="TEXT-ALIGN: right; FONT-FAMILY: Verdana; FONT-SIZE: 10pt">-5</TD><TD style="TEXT-ALIGN: right">-8</TD><TD style="TEXT-ALIGN: right">0</TD><TD style="TEXT-ALIGN: right">2</TD><TD style="TEXT-ALIGN: right">5</TD><TD style="TEXT-ALIGN: right">6</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">-2</TD><TD style="TEXT-ALIGN: right">-4</TD><TD style="TEXT-ALIGN: right">-8</TD><TD style="TEXT-ALIGN: right">-9</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">10</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">11</TD><TD style="TEXT-ALIGN: right; BACKGROUND-COLOR: #008080">2</TD><TD style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ff0000">3</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">3</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD></TR></TBODY></TABLE>
<TABLE style="BORDER-BOTTOM-STYLE: groove; BORDER-BOTTOM-COLOR: #00ff00; BORDER-RIGHT-STYLE: groove; BACKGROUND-COLOR: #fffcf9; BORDER-TOP-COLOR: #00ff00; FONT-FAMILY: Arial; BORDER-TOP-STYLE: groove; COLOR: #000000; BORDER-RIGHT-COLOR: #00ff00; FONT-SIZE: 10pt; BORDER-LEFT-STYLE: groove; BORDER-LEFT-COLOR: #00ff00"><TBODY><TR><TD>
Spreadsheet Formulas</TD></TR><TR><TD><TABLE style="FONT-FAMILY: Arial; FONT-SIZE: 9pt" border=1 cellSpacing=0 cellPadding=2><TBODY><TR style="BACKGROUND-COLOR: #cacaca; FONT-SIZE: 10pt"><TD>Cell</TD><TD>Formula</TD></TR><TR><TD>B3</TD><TD>{=MATCH(0,IF
(B1:AE1<0,1,0),0)-1}</TD></TR><TR><TD>C3</TD><TD>=MATCH(0,B1:AE1,1)</TD></TR><TR><TD>D3</TD><TD>{=MATCH(FALSE,IF
(B1:AE1<=0,),0)-1}</TD></TR><TR><TD>E3</TD><TD>=MATCH(1,B1:AE1,1)</TD></TR><TR><TD>B7</TD><TD>{=MATCH(0,IF
(B5:AE5<0,1,0),0)-1}</TD></TR><TR><TD>C7</TD><TD>=MATCH(0,B5:AE5,1)</TD></TR><TR><TD>D7</TD><TD>{=MATCH(FALSE,IF
(B5:AE5<=0,),0)-1}</TD></TR><TR><TD>E7</TD><TD>=MATCH(1,B5:AE5,1)</TD></TR><TR><TD>B11</TD><TD>{=MATCH(0,IF
(B9:AE9<0,1,0),0)-1}</TD></TR><TR><TD>C11</TD><TD>=MATCH(0,B9:AE9,1)</TD></TR><TR><TD>D11</TD><TD>{=MATCH(FALSE,IF
(B9:AE9<=0,),0)-1}</TD></TR><TR><TD>E11</TD><TD>=MATCH(1,B9:AE9,1)</TD></TR></TBODY></TABLE></TD></TR><TR><TD>
Formula Array:
Produce enclosing { } by entering
formula with CTRL+SHIFT+ENTER!</TD></TR></TBODY></TABLE>
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