Thank you for your quick replies, Robby19 and markmzz. I would like to try to solve this issue using one of the formulas that you suggested. (Converting my data to a table messed up my column widths, colors, heading titles, etc.). I've posted a small table below so I can better understand the designations within the formulas you suggest. Robby19, I wasn't able to figure out how to SUM a selected Header. markmzz, the SUM(INDEX*** formula worked fine, but I quickly discovered that if I add a new row at the bottom of the table, I have the same problem: the last row is ignored. Is there a tweak to the SUM(INDEX*** formula that I can add?
A4 REIMBURSEMENTS B4 JAN C4 FEB D4 MAR
[TABLE="width: 500"]
<tbody>[TR]
[TD="class: xl69, width: 239, align: right"]A5 Shaum[/TD]
[TD="class: xl66, width: 87, align: right"]100[/TD]
[TD="class: xl66, width: 87, align: right"]100[/TD]
[TD="class: xl66, width: 87, align: right"]100[/TD]
[/TR]
[TR]
[TD="class: xl69, align: right"]A6 Tagargulias[/TD]
[TD="class: xl66, align: right"]200[/TD]
[TD="class: xl66, align: right"]300[/TD]
[TD="class: xl66, align: right"]400[/TD]
[/TR]
[TR]
[TD="class: xl69, align: right"]A7 Thompson[/TD]
[TD="class: xl66, align: right"]300[/TD]
[TD="class: xl66, align: right"]200[/TD]
[TD="class: xl66, align: right"]200[/TD]
[/TR]
[TR]
[TD="class: xl69, align: right"]A8 Vorm[/TD]
[TD="class: xl66, align: right"]200[/TD]
[TD="class: xl66, align: right"]100[/TD]
[TD="class: xl66, align: right"]200[/TD]
[/TR]
[TR]
[TD="class: xl68, align: right"]A9 TOTAL[/TD]
[TD="class: xl67, bgcolor: yellow, align: right"]800[/TD]
[TD="class: xl67, bgcolor: yellow, align: right"]700[/TD]
[TD="class: xl67, bgcolor: yellow, align: right"]900[/TD]
[/TR]
</tbody>[/TABLE]
Row 4 is my Header Row. A5 is where a new first row will be placed, and after A8 is where a new row at the bottom would be placed. I may find myself being forced to use a table because this isn't the only set of numbers on the worksheet. There will be new rows created above this particular set of number (but perhaps your formulas will automatically make accommodations for the movement of this set of numbers up and down the page.