As an example, if you add this to a regular module in your workbook
Code:
Function SumColour(Rng As Range, ClrRng As Range) As Long
Dim Cl As Range
For Each Cl In Rng
If Cl.Interior.Color = ClrRng.Interior.Color Then
SumColour = SumColour + Cl.Value
End If
Next Cl
End Function
You can the use this in the sheet like
<b>Excel 2013/2016</b><table cellpadding="2.5px" rules="all" style=";background-color: rgb(255,255,255);border: 1px solid;border-collapse: collapse; border-color: rgb(187,187,187)"><colgroup><col width="25px" style="background-color: rgb(218,231,245)" /><col /><col /></colgroup><thead><tr style=" background-color: rgb(218,231,245);text-align: center;color: rgb(22,17,32)"><th></th><th>A</th><th>E</th></tr></thead><tbody><tr ><td style="color: rgb(22,17,32);text-align: center;">1</td><td style=";">Store</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">2</td><td style="text-align: right;;">1</td><td style="text-align: right;;">33</td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">3</td><td style="text-align: right;;">2</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">4</td><td style="text-align: right;background-color: #FAB067;;">3</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">5</td><td style="text-align: right;;">4</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">6</td><td style="text-align: right;;">5</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">7</td><td style="text-align: right;background-color: #FAB067;;">6</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">8</td><td style="text-align: right;;">7</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">9</td><td style="text-align: right;background-color: #8DC182;;">8</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">10</td><td style="text-align: right;;">9</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">11</td><td style="text-align: right;background-color: #FAB067;;">10</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">12</td><td style="text-align: right;;">11</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">13</td><td style="text-align: right;background-color: #8DC182;;">12</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">14</td><td style="text-align: right;;">13</td><td style="text-align: right;;"></td></tr><tr ><td style="color: rgb(22,17,32);text-align: center;">15</td><td style="text-align: right;background-color: #FAB067;;">14</td><td style="text-align: right;;"></td></tr></tbody></table><p style="width:2.4em;font-weight:bold;margin:0;padding:0.2em 0.6em 0.2em 0.5em;border: 1px solid rgb(187,187,187);border-top:none;text-align: center;background-color: rgb(218,231,245);color: rgb(22,17,32)">Tmp</p><br /><br /><table width="85%" cellpadding="2.5px" rules="all" style=";border: 2px solid black;border-collapse:collapse;padding: 0.4em;background-color: rgb(255,255,255)" ><tr><td style="padding:6px" ><b>Worksheet Formulas</b><table cellpadding="2.5px" width="100%" rules="all" style="border: 1px solid;text-align:center;background-color: rgb(255,255,255);border-collapse: collapse; border-color: rgb(187,187,187)"><thead><tr style=" background-color: rgb(218,231,245);color: rgb(22,17,32)"><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: rgb(218,231,245);color: rgb(22,17,32)">E2</th><td style="text-align:left">=SumColour(<font color="Blue">A2:A16,A7</font>)</td></tr></tbody></table></td></tr></table><br />
But you will need to save the workbook as macro enabled.
To install/use macros have a look here
https://www.contextures.com/xlvba01.html
=Count