I have one column of numerical data, ten in number, containing both positive and negative numbers, as well as zeros/blanks. In the adjacent column, I have the letter "c" in some but not all of the adjacent cells to the first column. Where there is no "c", the cell is blank.
I would like to have a formula that sums all of the positive numbers where there is a "c" adjacent and a formula that will do the same for negative numbers.
Thanks in advance.
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