To help you visualise my suggestion.
<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: 75px"><COL style="WIDTH: 35px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 14px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 21px"><COL style="WIDTH: 25px"><COL style="WIDTH: 28px"></COLGROUP><TBODY><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt; FONT-WEIGHT: bold"><TD> </TD><TD>A</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><TD>O</TD><TD>P</TD><TD>Q</TD><TD>R</TD><TD>S</TD><TD>T</TD><TD>U</TD><TD>V</TD><TD>W</TD><TD>X</TD><TD>Y</TD><TD>Z</TD><TD>AA</TD><TD>AB</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">1</TD><TD>Date</TD><TD>Day</TD><TD style="TEXT-ALIGN: right">0</TD><TD style="TEXT-ALIGN: right">1</TD><TD style="TEXT-ALIGN: right">2</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">5</TD><TD style="TEXT-ALIGN: right">6</TD><TD style="TEXT-ALIGN: right">7</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">9</TD><TD style="TEXT-ALIGN: right">10</TD><TD style="TEXT-ALIGN: right">11</TD><TD style="TEXT-ALIGN: right">12</TD><TD style="TEXT-ALIGN: right">13</TD><TD style="TEXT-ALIGN: right">14</TD><TD style="TEXT-ALIGN: right">15</TD><TD style="TEXT-ALIGN: right">16</TD><TD style="TEXT-ALIGN: right">17</TD><TD style="TEXT-ALIGN: right">18</TD><TD style="TEXT-ALIGN: right">19</TD><TD style="TEXT-ALIGN: right">20</TD><TD style="TEXT-ALIGN: right">21</TD><TD style="TEXT-ALIGN: right">22</TD><TD style="TEXT-ALIGN: right">23</TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">2</TD><TD style="TEXT-ALIGN: right">01/01/2011</TD><TD style="TEXT-ALIGN: right">Sat</TD><TD> </TD><TD> </TD><TD> </TD><TD>/</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</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 style="TEXT-ALIGN: right">9.0</TD><TD style="TEXT-ALIGN: right">5</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">3</TD><TD style="TEXT-ALIGN: right">02/01/2011</TD><TD style="TEXT-ALIGN: right">Sun</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD>/</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</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><TD> </TD><TD style="TEXT-ALIGN: right">5.0</TD><TD style="TEXT-ALIGN: right">5</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">4</TD><TD style="TEXT-ALIGN: right">03/01/2011</TD><TD style="TEXT-ALIGN: right">Mon</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD>/</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>\</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD style="TEXT-ALIGN: right">8.0</TD><TD style="TEXT-ALIGN: right">0</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">5</TD><TD style="TEXT-ALIGN: right">04/01/2011</TD><TD style="TEXT-ALIGN: right">Tue</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>x</TD><TD>\</TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD> </TD><TD style="TEXT-ALIGN: right">8.5</TD><TD style="TEXT-ALIGN: right">0.5</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>AA2</TD><TD>=COUNTIF(C2:Z2,"X")+(COUNTIF
(C2:Z2,"\")+COUNTIF
(C2:Z2,"/"))/2</TD></TR><TR><TD>AB2</TD><TD>=MAX(0,AA2-LOOKUP
(WEEKDAY(A2,3),{0,5,6},{8,4,0}))</TD></TR><TR><TD>AA3</TD><TD>=COUNTIF(C3:Z3,"X")+(COUNTIF
(C3:Z3,"\")+COUNTIF
(C3:Z3,"/"))/2</TD></TR><TR><TD>AB3</TD><TD>=MAX(0,AA3-LOOKUP
(WEEKDAY(A3,3),{0,5,6},{8,4,0}))</TD></TR><TR><TD>AA4</TD><TD>=COUNTIF(C4:Z4,"X")+(COUNTIF
(C4:Z4,"\")+COUNTIF
(C4:Z4,"/"))/2</TD></TR><TR><TD>AB4</TD><TD>=MAX(0,AA4-LOOKUP
(WEEKDAY(A4,3),{0,5,6},{8,4,0}))</TD></TR><TR><TD>AA5</TD><TD>=COUNTIF(C5:Z5,"X")+(COUNTIF
(C5:Z5,"\")+COUNTIF
(C5:Z5,"/"))/2</TD></TR><TR><TD>AB5</TD><TD>=MAX(0,AA5-LOOKUP
(WEEKDAY(A5,3),{0,5,6},{8,4,0}))</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
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