Marcelo,
Here is the new formula that I think about the problem:
<b>Excel 2007</b><table cellpadding="2.5px" rules="all" style=";background-color: #FFFFFF;border: 1px solid;border-collapse: collapse; border-color: #A6AAB6"><colgroup><col width="25px" style="background-color: #E0E0F0" /><col /><col /><col /></colgroup><thead><tr style=" background-color: #E0E0F0;text-align: center;color: #161120"><th></th><th>F</th><th>R</th><th>AE</th></tr></thead><tbody><tr ><td style="color: #161120;text-align: center;">1</td><td style="text-align: center;background-color: #C5D9F1;;">Cal</td><td style="text-align: center;background-color: #C5D9F1;;">Func</td><td style="text-align: center;background-color: #C5D9F1;;">Percentage</td></tr><tr ><td style="color: #161120;text-align: center;">2</td><td style="text-align: center;;">11</td><td style="text-align: center;;">11</td><td style="text-align: center;;">-22.98%</td></tr><tr ><td style="color: #161120;text-align: center;">3</td><td style="text-align: center;;">22</td><td style="text-align: center;;">61</td><td style="text-align: center;;">130.69%</td></tr><tr ><td style="color: #161120;text-align: center;">4</td><td style="text-align: center;;">4</td><td style="text-align: center;;">11</td><td style="text-align: center;;">0.00%</td></tr><tr ><td style="color: #161120;text-align: center;">5</td><td style="text-align: center;;">12</td><td style="text-align: center;;">31</td><td style="text-align: center;;">-16.98%</td></tr><tr ><td style="color: #161120;text-align: center;">6</td><td style="text-align: center;;">12</td><td style="text-align: center;;">23</td><td style="text-align: center;;">82.98%</td></tr><tr ><td style="color: #161120;text-align: center;">7</td><td style="text-align: center;;">5</td><td style="text-align: center;;">23</td><td style="text-align: center;;">0.00%</td></tr><tr ><td style="color: #161120;text-align: center;">8</td><td style="text-align: center;;">10</td><td style="text-align: center;;">12</td><td style="text-align: center;;">78.69%</td></tr><tr ><td style="color: #161120;text-align: center;">9</td><td style="text-align: center;;">18</td><td style="text-align: center;;">13</td><td style="text-align: center;;">5.19%</td></tr><tr ><td style="color: #161120;text-align: center;">10</td><td style="text-align: center;;">27</td><td style="text-align: center;;">21</td><td style="text-align: center;;">3.55%</td></tr><tr ><td style="color: #161120;text-align: center;">11</td><td style="text-align: right;;"></td><td style="text-align: right;;"></td><td style="text-align: right;;"></td></tr><tr ><td style="color: #161120;text-align: center;">12</td><td style="text-align: center;;">*******</td><td style="text-align: center;;">*******</td><td style=";">********</td></tr></tbody></table><p style="width:1.8em;font-weight:bold;margin:0;padding:0.2em 0.6em 0.2em 0.5em;border: 1px solid #A6AAB6;border-top:none;text-align: center;background-color: #E0E0F0;color: #161120">Cal</p><br /><br /><table width="85%" cellpadding="2.5px" rules="all" style=";border: 2px solid black;border-collapse:collapse;padding: 0.4em;background-color: #FFFFFF" ><tr><td style="padding:6px" ><b>Array Formulas</b><table cellpadding="2.5px" width="100%" rules="all" style="border: 1px solid;text-align:center;background-color: #FFFFFF;border-collapse: collapse; border-color: #A6AAB6"><thead><tr style=" background-color: #E0E0F0;color: #161120"><th width="10px">Cell</th><th style="text-align:left;padding-left:5px;">Formula</th></tr></thead><tbody><tr><th width="10px" style=" background-color: #E0E0F0;color: #161120">AE2</th><td style="text-align:left">{=IF(<font color="Blue">ISERR(<font color="Red">F2*1</font>),0,SUM(<font color="Red">(<font color="Green">'Pct by Cal'!$A$2:$A$23=(<font color="Purple">F2*1</font>)</font>)*(<font color="Green">'Pct by Cal'!$D$2:$D$23</font>)*(<font color="Green">'Pct by Cal'!$C$2:$C$23=IF(<font color="Purple">COUNTIFS(<font color="Teal">'Pct by Cal'!$A$2:$A$23,(<font color="#FF00FF">F2*1</font>),'Pct by Cal'!$C$2:$C$23,(<font color="#FF00FF">R2*1</font>)</font>)>0,(<font color="Teal">R2*1</font>),""</font>)</font>)</font>)</font>)}</td></tr></tbody></table><b>Entered with Ctrl+Shift+Enter.</b> If entered correctly, Excel will surround with curly braces {}.
<b>Note: Do not try and enter the {} manually yourself</b></td></tr></table><br />
Note1: the data of columns F and R are text and not number.
Note2: if you have another formula, post it.
Markmzz