The sum of a vertical section based on an two points in adjacent column

Question

I need a function to add vertical cells based on input from another cell. For example, in the image, the input cell value is 12, so I the sum from zero to 12 of the highlighted blue section.

It will also start at zero but the value may change to 24, 36 etc.

Answer 1

You can use this formula with a helper cell:

=SUM(D4:INDIRECT("D"&B1+4))

Where--

• D4 is the start range (starting 0 on PMT).
• B1 is the helper cell/ end of range.

Kindly see the result below:

You may refer to this link for more detailed explanation:

• How To Sum A Dynamic Range: Google Sheets
  (I am not affiliated with this article, just found on google search)